The Polymorphic Structures of a Squarylium Dye. The Monoclinic (Green) and Triclinic (Violet) Forms of 2,4 bis(2-hydroxy 4-diethylaminophenyl)-1,3-cyclobutadienediylium 1,3-diolate

References

• Sporer , A. H. 1984 . Appl. Optics , 23 : 2738
   PubMed Web of Science ®Google Scholar
• Jipson , V. B. and Jones , C. R. 1981 . J. Vacuum Technol. , 18 : 105
   Web of Science ®Google Scholar
• Cohen , M. S. IBM Internal Report RC8034 .
   Google Scholar
• Merritt , V. Y. and Hovel , H. J. 1976 . Appl. Phys. Lett. , 29 : 414
   Web of Science ®Google Scholar
• Piechowski , A. P. , Bird , G. R. , Morel , D. and Stogryn , E. I. 1984 . J. Phys. Chem. , 88 : 934
   Web of Science ®Google Scholar
• Metz , P. J. , Champ , R. B. , Chang , L. S. , Chiou , C. , Keller , G. S. , Liclian , L. C. , Neiman , R. R. , Shattuck , M. D. and Weiche , W. J. 1977 . Photogr. Sci. Eng. , 21 : 73
   Google Scholar
• Morel , D. L. 1979 . Molec. Cryst. Liq. Cryst. , 50 : 127
   Web of Science ®Google Scholar
• Forster , M. and Hester , R. E. 1982 . J. Chem. Soc. Faraday Trans. I , 78 : 1847
   Google Scholar
• Morel , D. L. , Ghosh , A. K. , Feng , T. , Stogryn , E. L. , Shaw , P. E. and Fishman , C. 1978 . Appl. Phys. Lett. , 32 : 495
   Web of Science ®Google Scholar
• Bernstein , J. , Tristani-Kendra , M. and Eckhardt , C. J. 1986 . J. Phys. Chem. , 90 : 1069
   Web of Science ®Google Scholar
• Tristani-Kendra , M. , Eckhardt , C. J. , Bernstein , J. and Goldstein , E. 1983 . Chem. Phys. Lett. , 98 : 57
   Web of Science ®Google Scholar
• Merritt , V. 1978 . IBM J. Res. Develop. , 22 : 353
   Web of Science ®Google Scholar
• Morel , D. L. , Ghosh , A. K. , Feng , T. , Stogryn , E. L. , Purwin , P. E. , Shaw , R. F. and Fishman , C. 1978 . Appl. Phys. Lett. , 32 : 495
   Web of Science ®Google Scholar
• Musser , M. E. and Dahlberg , S. C. 1980 . Applic. Surf. Sci. , 5 : 28
   Web of Science ®Google Scholar
• Loutfy , R. O. , Hsiao , C. K. and Kazmaier , P. M. 1983 . Photogr. Sci. Eng. , 27 : 5
   Google Scholar
• Pichowski , A. P. , Bird , G. R. , Morel , D. L. and Stogryn , E. L. 1984 . J. Phys. Chem. , 88 : 934
   Web of Science ®Google Scholar
• Morel , B. D. , Stogryn , E. I. , Ghosh , A. K. , Feng , T. , Perwin , P. E. , Shaw , R. F. , Fishman , C. , Bird , G. R. and Piechowski , A. P. 1984 . J. Phys. Chem. , 88 : 923
   Web of Science ®Google Scholar
• Tristani-Kendra , M. and Eckhardt , C. J. 1984 . J. Chem. Phys. , 81 : 1160
   Web of Science ®Google Scholar
• Earlier crystallographic work on this material was also carried out by a number of workers at Kodak. We are grateful to Drs. A. Marchetti and D. L. Smith who provided us (through Prof. C. J. Eckhardt at the University of Nebraska) with their data for the monoclinic structure, which agrees with the structure reported here, except for some differences in the model used for the disorder of the diethylamino group.
   Google Scholar
• Sheldrick , G. M. SHELX76, A Program for Crystal Structure Determination and Refinement, Cambridge University, Cambridge, England, 1976.
   Google Scholar
• Farnum , D. G. , Neumann , M. S. and Suggs , W. T. Jr . 1974 . J. Cryst. Mol. Struct. , 4 : 199
   Google Scholar
• Budzelaar , P. H. M. , Dietrich , H. , Macheleleid , J. , Weiss , R. and Schleyer , R. P. v. 1985 . Chem. Ber. , 118 : 2118
   Google Scholar
• Schmidt , A. H. , Ried , W. , Pustolemsek , P. and Schuckmann , W. 1975 . Angew. Chem. , 87 : 879
   Google Scholar
• 1975 . Angew. Chem. Int. Ed. Engl. , 14 : 823
   Web of Science ®Google Scholar
• Mattes , R. , Altmeppen , D. , Johann , G. , Schultz-Coerne , M. and Weber , H. 1982 . Monatsh. Chem. , 113 : 191
   Web of Science ®Google Scholar
• Kennard , O. , Watson , D. G. , Allen , F. H. , Isaacs , N. W. , Motherwell , W. D. S. , Pettersen , R. C. and Town , W. G. , eds. 1972 . Molecular Structures and Dimensions , Vol. A1 , Utrecht : N. V. A. Oosthoek's Uitgevers Mij .
   Google Scholar
• Trueblood , K. N. , Goldish , E. and Donohue , J. 1961 . Acta Cryst. , 14 : 1009
   Google Scholar
• Mak , T. C. W. and Trotter , J. 1965 . Acta Cryst. , 18 : 68
   Google Scholar
• Leiserowitz , L. 1976 . Acta Crystallogr. Sect. , B32 : 775
   Web of Science ®Google Scholar
• Margulis , T. N. 1969 . J. Chem. Soc. Chem. Commun. , : 215
   Google Scholar
• Bernstein , J. , Cohen , M. D. and Leiserowitz , L. 1974 . The Chemistry of Quinones , Edited by: Patai , S. 37 New York : Wiley-Interscience .
   Google Scholar
• Hoffmann , R. and Lipscomb , W. N. 1962 . J. Chem. Phys. , 36 : 2179 idem., ibid., 37, 2872 (1962)
   Web of Science ®Google Scholar
• Hoffmann , R. 1963 . ibid. , 39 : 1397
   Google Scholar