Eckhardt, C. J.. Organic Molecular Solids. Molecular Crystals and Liquid Crystals (2008), 487 173-174. CODEN: MCLCD8 ISSN:1542-1406. AN 2008:986515 CAPLUS
Mohapatra, Himansu; Eckhardt, Craig J.. Elastic Constants and Related Mechanical Properties of the Monoclinic Polymorph of the Carbamazepine Molecular Crystal. Journal of Physical Chemistry B (2008), 112(8), 2293-2298.
Eckhardt, Craig J.; Gavezzotti, Angelo. Computer Simulations and Analysis of Structural and Energetic Features of Some Crystalline Energetic Materials. Journal of Physical Chemistry B (2007), 111(13), 3430-3437.
Haycraft, James J.; DeVries, Christine A.; Garcia Flores, Harry; Lech, Angelika; Hagen, James P.; Eckhardt, Craig J. Experimental Investigation of the Reversible Collapse of a Capped Amphiphile Langmuir Monolayer. Thin Solid Films (2007), 515(5), 2990-2997.
Eckhardt, Craig J.. Mechanochemistry: the last energetic frontier. Molecular Crystals and Liquid Crystals (2006), 456 1-14.
Haycraft, James J.; Stevens, Lewis L.; Eckhardt, Craig J., Single-crystal, polarized, Raman scattering study of the molecular and lattice vibrations for the energetic material cyclotrimethylene. Journal of Applied Physics (2006), 100(5), 053508/1-053508/9
Haycraft, James J.; Stevens, Lewis L.; Eckhardt, Craig J. The elastic constants and related properties of the energetic material cyclotrimethylene trinitramine (RDX) determined by Brillouin scattering. Journal of Chemical Physics (2006), 124(2), 024712/1-024712/11.
Stevens, Lewis L.; Haycraft, James J.; Eckhardt, Craig J. Single-Crystal, Polarized Raman-Scattering Study of the Molecular and Lattice Vibrations for the Energetic Material Cyclotetramethylenetetranitramine, beta -Polymorph (beta -HMX). Crystal Growth & Design (2005), 5(6), 2060-2065.
Stevens, Lewis L.; Eckhardt, Craig J.The elastic constants and related properties of beta -HMX determined by Brillouin scattering. Journal of Chemical Physics (2005), 122(17), 174701/1-174701/8.
Eckhardt, C. J. Energetic Materials, Part 1: Decomposition, Crystal and Molecular Properties (edited by Peter A. Politzer and Jane S. Murray). Journal of the American Chemical Society (2004), 126(45), 14997.
Selbo, J. G.; Haycraft, J. J.; Eckhardt, C. J. Elastic and Thermodynamic Properties of Dianin's Inclusion Compounds and Their Guest-Host Interactions. Journal of Physical Chemistry B (2003), 107(40), 11163-11169.
Selbo, Jon G.; Desper, John M.; Eckhardt, Craig J. Structural studies of guest-host interactions in Dianin's clathrates. Journal of Inclusion Phenomena and Macrocyclic Chemistry (2003), 45(1-2), 73-78.
Luty, Tadeusz; Ordon, Piotr; Eckhardt, Craig J. A model for mechanochemical transformations: Applications to molecular hardness, instabilities, and shock initiation of reaction. Journal of Chemical Physics (2002), 117(4), 1775-1785.
Eckhardt, Craig J.; Luty, Tadeusz. A solid-state approach to Langmuir monolayers, their phases, phase transitions, and design. Handbook of Thin Film Materials (2002), 2 685-733.
Moser, A. E.; Eckhardt, C. J.. A method for reliable measurement of relative frictional properties of different self-assembled monolayers using frictional force microscopy. Thin Solid Films(2001), 382(1,2), 202-213.
Munn, Robert W.; Eckhardt, Craig J.. A Model for Resonance-Assisted Hydrogen Bonding in Crystals and Its Graph Set Analysis. Journal of Physical Chemistry A (2001), 105(28), 6938-6942.
Morris, K. R.; Griesser, U. J.; Eckhardt, C. J.; Stowell, J. G. Theoretical approaches to physical transformations of active pharmaceutical ingredients during manufacturing processes. Advanced Drug Delivery Reviews (2001), 48(1), 91-114.
H. Flores; Erickson, C. A.; Lech, A.; Hagen, J.; Eckhardt, Craig J.. Unusual collapse behavior of a Langmuir film of a novel amphiphile. Book of Abstracts, 219th ACS National Meeting, San Francisco, CA, March 26-30, 2000, CHED-734.
Sandstedt, C. A.; Michalski, D.; Eckhardt, C. J.. Microscopic and Bulk Elastic Properties in Supramolecular Systems: Guest-Host Interactions in Dianin's Inclusion Compounds. Tetrahedron (2000), 56(36), 6625-6632.
Sandstedt, C. A.; Michalski, D.; Eckhardt, C. J.. Quantitative measurement of guest-host interactions in supramolecular systems: a comparative Brillouin scattering study of the Dianin's compound clathrand and two of its isostructural clathrates. Journal of Chemical Physics (2000), 112(17), 7606-7614.
Luty, Tadeusz; Eckhardt, Craig J.. Cooperative effects in solid-state reactions. Molecular Solid State (1999), 3 51-87.
Luty, Tadeusz; Eckhardt, Craig J.; Lefebvre, Jacques.Langmuir monolayers as disordered solids: Disorder and elastic fluctuations in mesophases. Journal of Chemical Physics (1999), 111(22), 10321-10329.
Luty, Tadeusz; Swanson, David R.; Eckhardt, Craig J..Langmuir monolayers as disordered solids: Strain-tilt-backbone coupling and natural order parameters for the swiveling transitions. Journal of Chemical Physics (1999), 110(5), 2606-2611.
Foley, James L.; Li, Lian; Sandman, Daniel J.; Vela, Michael J.; Foxman, Bruce M.; Albro, Rick; Eckhardt, Craig J.. Side Group Interactions in a Polydiacetylene Single Crystal. Journal of the American Chemical Society (1999), 121(31), 7262-7263.
Eckhardt, C. J.; Luty, T.; Peachey, N. M. Collective interactions and solid state reactivity. Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals (1998), 313 25-38.
White, K. M.; Eckhardt, C. J.. Single crystal Raman spectra of 1,2,4,5-tetrabromobenzene: Calculational and experimental assignment of the internal modes. Journal of Chemical Physics (1998), 109(1), 208-213.
Michalski, Darek; Eckhardt, Craig J.. Computational Determination of the Elastic Properties of the a-Phenazine Crystal. Journal of Physical Chemistry B (1997), 101(47), 9690-9694.
Swanson, David R.; Luty, Tadeusz; Eckhardt, Craig J.. Langmuir monolayers as disordered solids: Strain-state calculations applied to stearic acid. Journal of Chemical Physics (1997), 107(12), 4744-4750.
Gibson, M. D.; Swanson, D. R.; Eckhardt, C. J.; Zeng, X. C.Monte Carlo simulation of the solid to superliquid phase transition of Langmuir monolayers. II. Characteristics of phase transition. Journal of Chemical Physics (1997), 106(5), 1961-1966.
Michalski, Darek; Swanson, David R.; Eckhardt, Craig J.. Elasticity, Bulk Modulus, and Mode Grueneisen Parameters of the HPTB Molecular Crystal: Computational Investigation of a Clathrate Precursor. J. Phys. Chem.(1996), 100(22), 9506-9511.
Swanson, D. R.; Hardy, R. J.; Eckhardt, C. J.. Model calculations of Langmuir monolayers: Pressure effects on tilting behavior of idealized amphiphiles. Journal of Chemical Physics (1996), 105(2), 673-677.
Eckhardt, Craig J.. Organic Molecular Crystals: Interaction, Localization and Transport Phenomena. By Edgar A. Silinsh (Latvian Academy of Sciences) and Vladislav Capek (Charles University, Prague). J. Am. Chem. Soc. (1996), 118(9), 2310.
Luty, Tadeusz; Eckhardt, Craig J.. Phase Transitions in Quasi-Two-Dimensional Molecular Solids: Tilt-Induced Elastic Multipoles and Their Interaction and Ferroelasticity in Langmuir Monolayers. Journal of Physical Chemistry (1996), 100(16), 6793-800.
White, K. M.; Eckhardt, C. J.. Anisotropic anharmonicity of lattice and molecular vibrations of 1,2,4,5-tetrabromobenzene determined by piezomodulated Raman spectroscopy.J. Chem. Phys. (1995), 103(9), 3279-88.
Luty, Tadeusz; Eckhardt, Craig J.. General theoretical concepts for solid state reactions: quantitative formulation of the reaction cavity, steric compression, and reaction-induced stress using an elastic multipole representation of chemical pressure. Journal of the American Chemical Society (1995), 117(9), 2441-52.
Luty, Tadeusz; Eckhardt, Craig J.. Phase Transitions in Quasi-Two-Dimensional Molecular Solids. A Microscopic Theory of Tilt and Structural Instabilities in Langmuir Monolayers. J. Phys. Chem.(1995), 99(21), 8872-87.
Sartwell, J.; Eckhardt, C. J.. Reply to "Comment on 'Brillouin-scattering study of the elastic constants of phenothiazine through the phase transition'". Physical Review B: Condensed Matter (1995), 52(14), 10635-6.
Sandstedt, C. A.; Rieke, R. D.; Eckhardt, C. J.. Solid-State and Solvatochromic Spectra of a Highly Regular Polythiophene. Chem. Mater.(1995), 7(6), 1057-9.
Swanson, D. R.; Hardy, R. J.; Eckhardt, C. J.. A cross-section potential for calculation of close packing geometries of monolayer films. Thin Solid Films (1994), 244(1-2), 824-6.
Eckhardt, C. J.; Peachey, N. M.; Takacs, J. M.; Uphaus, R. A.Crystal engineering in two dimensions: control of planar packing by design of new amphiphiles. Thin Solid Films (1994), 242(1-2), 67-73.
Peachey, N. M.; Eckhardt, C. J.. Energetics of organic solid-state reactions: electronic structure and photoreaction mechanism of the 2,5-distyrylpyrazine oligomer molecular crystal.J. Phys. Chem. (1994), 98(2), 685-91.
Peachey, N. M.; Eckhardt, C. J.. Energetics of Organic Solid-State Reactions: Piezomodulated Raman Spectroscopy, Modal Motion, and Anharmonicity in the 2,5-Distyrylpyrazine (DSP) Photoreaction. J. Phys. Chem.(1994), 98(29), 7106-15.
Sandstedt, C. A.; Eckhardt, C. J.; Downey, M. J.; Sandman, D. J.Optical, Calorimetric, and Mass Spectroscopic Study of Nonthermochromic Crystalline Forms of the Polydiacetylene Bis(ethylurethane)-5,7-Dodecadiyne-1,12-diol (ETCD). Chem. Mater.(1994), 6(8), 1346-50.
Sartwell, J.; Eckhardt, C. J.. Brillouin-scattering study of the elastic constants of phenothiazine through the phase transition. Phys. Rev. B:Condens. Matter (1993), 48(17), 12438-48.
Swanson, D. R.; Eckhardt, C. J.. Crystal engineering in two dimensions: close-packing applied to a Langmuir-Blodgett film. Langmuir (1993), 9(1), 22-4.
Eckhardt, C. J.. Crystal engineering in two dimensions: design of amphiphiles using the close-packing principle. Acta Chim. Hung.(1993), 130(2), 235-46.
Peachey, N. M.; Eckhardt, C. J.. Energetics of organic solid-state reactions: lattice dynamics and chemical pressure in the 2,5-distyrylpyrazine photoreaction. J. Phys. Chem. (1993), 97(41), 10849-56.
Peachey, N. M.; Eckhardt, C. J.. Energetics of organic solid-state reactions: the topochemical principle and the mechanism of the oligomerization of the 2,5-distyrylpyrazine molecular crystal. J. Am. Chem. Soc. (1993), 115(9), 3519-26.
Bonafede, S. J.; Eckhardt, C. J.. Investigation of the b-g phase transition in single crystal malononitrile by polarized Raman spectroscopy. J. Chem. Phys. (1993), 99(8), 5637-45.
Swanson, D. R.; Hardy, R. J.; Eckhardt, C. J.. Monte Carlo simulation of the solid to super liquid phase transition of Langmuir monolayers using cross-section potentials.J. Chem. Phys. (1993), 99(10), 8194-9.
Stezowski, John J.; Biedermann, P. Ulrich; Hildenbrand, Thomas; Dorsch, John A.; Eckhardt, Craig J.; Agranat, Israel. Overcrowded enes of the tricycloindane-1,3-dione series: interplay of twisting, folding and pyramidalization. J. Chem. Soc., Chem. Commun. (1993), (3), 213-15.
Sartwell, J.; Eckhardt, C. J.. Piezomodulated-Raman-spectroscopy study of the phase transition in phenothiazine.Phys. Rev. B: Condens. Matter (1993), 48(18), 13361-71.
Eckhardt, C. J.; Peachey, N. M.; Swanson, D. R.; Takacs, J.; Khan, M. A.; Gong, X.; Kim, J. H.; Wang, J.; Uphaus, R. A. Separation of chiral phases in monolayer crystals of racemic amphiphiles. Nature (London)(1993), 362(6421), 614-16.
Stezowski, John J.; Peachey, Nathaniel M.; Goebel, Peter; Eckhardt, Craig J.. Structural and lattice dynamical investigation of models for reactions in organic crystals. J. Am. Chem. Soc. (1993), 115(15), 6499-505.
Eckhardt, C. J.; Swanson, D. R. Crystal engineering in two dimensions: a calculative investigation. Chem. Phys. Lett. (1992), 194(4-5-6), 370-4.
Eckhardt, C. J.; Peachey, N. M.; Swanson, D. R.; Kim, J. H.; Wang, J.; Uphaus, R. A.; Lutz, G. P.; Beak, P. Crystal engineering in two dimensions: design of amphiphiles for ordered films. Langmuir (1992), 8(11), 2591-4.
Peachey, N. M.; Eckhardt, C. J.. Electronic structure and photochemistry of the 2,5-distyrylpyrazine molecular crystal. Chem. Phys. Lett. (1992), 188(5-6), 462-6.
White, K. M.; Eckhardt, C. J.. Semiempirical determination of molecular motions associated with phonon modes in molecular crystals. J. Chem. Phys. (1990), 92(4), 2214-18.
Brose, Karl Heinz; Luty, Tadeusz; Eckhardt, Craig J.. Statics and dynamics of organic charge-transfer crystals: the orientational phase transition in A-TCNB. J. Chem. Phys. (1990), 93(3), 2016-31.
Dye, R. C.; Eckhardt, C. J.. A complete set of elastic constants of crystalline anthracene by Brillouin scattering. J. Chem. Phys.(1989), 90(4), 2090-6.
White, K. M.; Eckhardt, C. J.. Assignment of the Raman active lattice vibrations in various phases of 1,2,4,5-tetrabromobenzene and 1,2,4,5-tetrachlorobenzene crystals. J. Chem. Phys.(1989), 90(9), 4709-18.
Munn, R. W.; Phillips, R. J.; Eckhardt, C. J.. Dielectric theory of weak charge-transfer crystals. I. Effective polarizabilities. Chem. Phys.(1989), 135(1), 1-14.
Dye, R. C.; Sartwell, J.; Eckhardt, C. J.. Light scattering apparatus for angular dependent studies of anisotropic materials. Rev. Sci. Instrum. (1989), 60(8), 2610-13.
Morrow, M. E.; Dye, R. C.; Eckhardt, C. J.. Raman and reflection spectra of a polymorph of the polydiacetylene TCDU. Chem. Phys. Lett.(1989), 158(6), 499-503.
Dye, R. C.; Eckhardt, C. J.. Semiempirical determination of intermolecular anharmonicity in molecular crystals: the case of 1,2,4,5-tetrabromobenzene. J. Chem. Phys.(1989), 91(6), 3624-30.
Ries, P. D.; Eckhardt, C. J.. Observation of the H band in the crystal spectrum of 4-[4,4-bis[(trifluoromethyl)sulfonyl]-1,3-butadienyl]-N,N-dimethylbenzeneamine (FSMB). Chem. Phys. Lett. (1988), 153(2-3), 223-6.
Morrow, M. E.; Eckhardt, C. J.. Piezomodulated reflection spectra of the polydiacetylenes DCHD and THD. Chem. Phys. Lett. (1988), 144(1), 65-70.
Kulver, R.; Eckhardt, C. J.. Translational-rotational modes in noncentrosymmetric lattices: a lattice-dynamical interpretation of the phenanthrene phase transition. Phys. Rev. B:Condens. Matter (1988), 37(10-A), 5351-6.
Kulver, R.; Brose, K. H.; Eckhardt, C. J.. Calculation of the elastic constants of phenanthrene crystals. Chem. Phys.(1987), 115(2), 239-42.
White, K. M.; Eckhardt, C. J.. Comment to "relations between microscopic and macroscopic lowest-order optical nonlinearities of molecular crystals with one- or two-dimensional units". Phys. Rev. A:Gen. Phys. (1987), 36(11), 5463-4.
Ries, P. D.; Eckhardt, C. J.; Collins, J. R. Electronic spectra and structure of a carbocyanine-oxonol mixed dye crystal. J. Phys. Chem.(1987), 91(19), 5020-6.
Eckhardt, C. J.; Sartwell, J.; Morrow, M.; Mueller, H. Electronic spectra of a series of polydiacetylene crystals. ACS Symp. Ser.(1987), 337(Crystallogr. Ordered Polym.), 154-67.
Brose, Karl Heinz; Luty, Tadeusz; Eckhardt, Craig J.. Lattice dynamical approach to the phase transition in anthracene-1,2,4,5-tetracyanobenzene (A-TCNB) charge-transfer crystals. Chem. Phys. Lett. (1987), 137(1), 17-20.
White, K. M.; Eckhardt, C. J.. Mode anharmonicity in molecular crystals studied by piezomodulated Raman spectroscopy. Phys. Rev. Lett. (1987),59(5), 574-7.
White, K. M.; Eckhardt, C. J.. Optimization of effective nonlinear coefficients for second-harmonic generation in molecular crystals. Phys. Rev. A: Gen. Phys. (1987), 36(8), 3885-8.
Morrow, M. E.; White, K. M.; Eckhardt, C. J.; Sandman, D. J.Single-crystal reflection and Raman spectra of the polydiacetylene THD. Chem. Phys. Lett. (1987), 140(3), 263-9.
White, K. M.; Brose, K. H.; Eckhardt, C. J.. Assignment of the lattice modes in TCNQ0 single crystals.J. Chem. Phys. (1986), 85(10), 5551-9.
Brose, Karl Heinz; Eckhardt, Craig J.. Calculation of elastic constants of TCNQ crystals using atom-atom potentials. Chem. Phys. Lett. (1986), 125(3), 235-40.
Eckhardt, C. J.. Electronic spectra of a series of polydiacetylene crystals. Polym. Mater. Sci. Eng. (1986), 54 431-4.
Morrow, M.; Eckhardt, C. J.. Investigation of the phase transition in PTS polydiacetylene using piezomodulated reflection spectroscopy. Chem. Phys. Lett. (1986),131(1-2), 118-23.
White, K. M.; Dye, R. C.; Eckhardt, C. J.. Molecular motions in organic crystals. Mol. Cryst. Liq. Cryst. (1986), 134(1-4), 265-78.
Bernstein, J.; Tristani-Kendra, M.; Eckhardt, C. J.. The structure and spectral properties of a squarylium dye, 2,4-bis[(1-butyl-2(1H)-quinolylidene)methyl]-1,3-cyclobutadienediylium 1,3-diolate. J. Phys. Chem.(1986), 90(6), 1069-73.
Eckhardt, C. J.. A new spectroscopy for the study of molecular motions in crystals. Trans. Am. Crystallogr. Assoc. (1985), Volume Date 1984, 20 31-42.
Tristani-Kendra, M.; Delaney, J.; Eckhardt, C. J.. Exciton-polariton and charge transfer states in polymorphs of quasi-metallic crystals of dyes. J. Phys., Colloq. (1985), (C7), 425-8.
Delaney, J.; Morrow, M.; Eckhardt, C. J.. Observation of the J-band in the crystal spectra of pseudoisocyanine (PIC). Chem. Phys. Lett. (1985), 122(4), 347-51.
Luty, T.; Eckhardt, C. J.. Piezomodulated Raman spectroscopy of molecular crystals: an experimental method for study of the anharmonic properties of solids. J. Chem. Phys.(1985), 82(3), 1515-21.
Tristani-Kendra, M.; Eckhardt, C. J.. Influence of crystal fields on the quasimetallic reflection spectra of crystals: optical spectra of polymorphs of a squarylium dye. J. Chem. Phys. (1984),81(3), 1160-73.
Luty, T.; Eckhardt, C. J.. Modulated piezoreflectivity and the photoelasticity of molecular crystals. J. Chem. Phys.(1984), 81(1), 520-9.
Eckhardt, C. J.. Piezomodulation spectroscopy of molecular crystals. Mater. Sci. (1984),10(3), 355-64.
Tristani-Kendra, M.; Eckhardt, C. J.; Bernstein, J.; Goldstein, E.Strong coupling in the optical spectra of polymorphs of a squarylium dye. Chem. Phys. Lett. (1983),98(1), 57-61.
Williams, Brian G.; Parkinson, Gordon M.; Eckhardt, Craig J.; Thomas, John M.; Sparrow, Timothy. A new approach to the measurement of the momentum densities in solids using an electron microscope. Chem. Phys. Lett. (1981), 78(3), 434-8.
Ramdas, Subramanium; Thomas, John M.; Jordan, M. E.; Eckhardt, Craig J.. Enantiomeric intergrowth in hexahelicenes. J. Phys. Chem. (1981),85(16), 2421-5.
Merski, J.; Eckhardt, C. J.. Piezomodulation spectroscopy of molecular crystals. I. Methods and principles. J. Chem. Phys.(1981), 75(8), 3691-704.
Merski, J.; Eckhardt, C. J.. Piezomodulation spectroscopy of molecular crystals. II. The pyromellitic dianhydride-anthracene electron donor-acceptor complex. J. Chem. Phys.(1981), 75(8), 3705-18.
Merski, J.; Eckhardt, C. J.. Piezomodulation spectroscopy of molecular crystals. III. The first singlet system of anthracene. J. Chem. Phys. (1981), 75(8), 3719-30.
Merski, J.; Eckhardt, C. J.. Piezomodulation spectroscopy of molecular crystals. IV. The first singlet systems of TCNQ and BDP. J. Chem. Phys. (1981), 75(8), 3731-42.
Eckhardt, C. J.; Eckhardt, H. Electronic spectra and structure of a weak p complex. Vibronic structure in the charge-transfer transition of anthracene-s-trinitrobenzene. J. Am. Chem. Soc. (1980), 102(9), 2887-92.
Chance, R. R.; Yee, K. C.; Baughman, R. H.; Eckhardt, H.; Eckhardt, C. J.. Electronic spectra of two poly(diacetylene) isomorphs. J. Polym. Sci., Polym. Phys. Ed. (1980), 18(7), 1651-3.
Eckhardt, C. J.; Hood, R. J. Conformational effects upon the charge-transfer transitions of the hexamethylbenzene-tetracyanoethylene crystalline complex. J. Am. Chem. Soc. (1979), 101(21), 6170-4.
Bernstein, J.; Anderson, T. E.; Eckhardt, C. J.. Conformational influences on electronic spectra and structure.Polymorphs of N-(p-chlorobenzylidene)-p-chloroaniline. J. Am. Chem. Soc. (1979), 101(3), 541-5.
Eckhardt, C. J.; Mueller, H.; Eckhardt, H.; Chance, R. R.Electronic spectra and structure of polydiacetylene crystals. Mol. Cryst. Liq. Cryst. (1979), 52(1-4), 573-4.
Merski, J.; Eckhardt, C. J.. Piezomodulated reflection spectra of anthracene single crystals.Chem. Phys. Lett. (1979), 63(1), 174-8.
Eckhardt, H.; Eckhardt, C. J.; Yee, K. C. Thermal effects on the optical spectra of a polydiacetylene:poly{1,2-bis[4-(isopropylcarbamoyloxy)-n-butyl]-1-buten-3-ynylene}. J. Chem. Phys.(1979), 70(12), 5498-502.
Hood, R. J.; Mueller, H.; Eckhardt, C. J.; Chance, R. R.; Yee, K. C. Optical properties of a polydiacetylene crystal: poly[1,6-di(N-carbazolyl)-2,4-hexadiyne]. Chem. Phys. Lett. (1978), 54(2), 295-9.
Mueller, H.; Eckhardt, C. J.. Stress induced change of electronic structure in a polydiacetylene crystal. Mol. Cryst. Liq. Cryst. (1978), 45(3-4), 313-18.
Mueller, Hans; Eckhardt, Craig J.. Observation of Davydov splitting in PTS polydiacetylene crystal spectra. J. Chem. Phys.(1977), 67(11), 5386-7.
Mueller, H.; Eckhardt, C. J.; Chance, R. R.; Baughman, R. H.Optical and electrical properties of a polydiacetylene crystal: poly(5,7-dodecadiyne-1,12-diol-bisphenylurethane). Chem. Phys. Lett. (1977), 50(1), 22-5.
Tylicki, J.; Hood, R. J.; Gallup, G. A.; Eckhardt, C. J..Theory and applications of an atoms in molecules approach to the Xa-SCF method. J. Chem. Phys. (1977), 66(8), 3745-9.
Chance, R. R.; Baughman, R. H.; Mueller, H.; Eckhardt, C. J..Thermochromism in a polydiacetylene crystal. J. Chem. Phys.(1977), 67(8), 3616-18.
Eckhardt, C. J.; Hood, R. J.; Merski, J.; Tylicki, J. Piezoluminescence of anthracene single crystals. J. Lumin. (1976), 12-13 805-9.
Eckhardt, C. J.; Mueller, H.; Tylicki, J.; Chance, R. R. Piezomodulated and specular reflection spectra of a polydiacetylene crystal. J. Chem. Phys. (1976), 65(10), 4311-12.
Pennelly, R. R.; Eckhardt, C. J.. Quasi-metallic reflection spectra of TCNQ single crystals.Chem. Phys. (1976), 12(1), 89-105.
Eckhardt, C. J.; Pennelly, R. R. Selection rules for the charge transfer transitions in the symmetrical tetracyano-p-quinodimethane-anthracene molecular complex. J. Am. Chem. Soc. (1976), 98(8), 2034-40.
Eckhardt, C. J.; Pennelly, R. R. Anomalous structure in the reflection spectrum of the TCNQ molecular crystal. Spectrosc. Lett.(1974), 7(9), 469-75.
Eckhardt, C. J.; Merski, J. Piezoreflection spectra of single crystals of an organic charge transfer complex. Surface Sci.(1973), 37(3), 937-46.
Eckhardt, Craig J.; Nichols, Leo F. Excitons in a molecular liquid. Specular reflection spectrum of a-methylnaphthalene. Phys. Rev. Lett. (1972), 29(18), 1221-3.
Eckhardt, Craig J.. Influence of an external electric field on the charge transfer state of the TCNE [tetracyanoethylene]-trans-stilbene molecular complex. J. Chem. Phys.(1972), 56(8), 3947-51.
Eckhardt, C. J.; Bernstein, J. Molecular conformation and electronic structure. Solid-state spectrum of a planar anil.J. Amer. Chem. Soc. (1972), 94(9), 3247-9.
Eckhardt, C. J.; Pennelly, R. R. Metallic reflection of the tetracyanoquinodimethane molecular crystal. Chem. Phys. Lett. (1971), 9(6), 572-4.
Eckhardt, Craig J.; Sturgeon, G. D. Specular reflection and absorption edges of xenon difluoride single crystals in the near ultraviolet. Chem. Phys. Lett. (1971),8(3), 300-2.
Eckhardt, Craig J.; Gross, Michael L. Proposed technique for signal multiplexing in mass spectrometry. Int. J. Mass Spectrom. Ion Phys. (1970), 5(3-4), 223-7.