References
- Willett , R.D. , Gatteschi , D. and Kahn , O. , eds. 1985 . Magneto-Structural Correlations in Exchange Coupled Systems , Plenum Press .
- Van der Ziel , J.P. 1972 . J. chem. Phys. , 57 : 2442 – 2442 . (b) Van Gorkom, G. G. P., Henning, J. C. M., and Van Stapele, R. P., 1973, Phys. Rev. B, 8, 955.
- Van der Ziel , J.P. 1974 . Phys. Rev. B , 9 : 2846 – 2846 . (b) Ferguson, J., and Van Oosterhout, B., 1978, Solid St. Commun., 27, 1223. (c) Platz, W., and Heber, J., 1976, Z. Phys. B, 24, 333.
- Wessel , G.J. and Ijdo , D.J.W. 1957 . Acta crystallogr. , 10 : 466 – 466 .
- Briat , B. , Russel , M.F. , Rivoal , J.C. , Chapelle , J.P. and Kahn , O. 1977 . Molec. Phys. , 34 : 1357 – 1357 . (b) Dubicki, L., Ferguson, J., and Harrowfield, B. V., 1977, Molec. Phys., 34, 1545. (c) Dean, N. J., and Maxwell, K. J., 1986, Chem. Phys., 106, 233. (d) Leuenberger, B., and Güdel, H. U., 1985, J. Phys. C, 18, 1909. (e) Leuenberger, B., Stebler, A., Güdel, H. U., Furrer, A., and Kjems, J. K., 1984, Phys. Rev. B, 30, 6300.
- Jörgensen , S.M. 1882 . J. prakt. Chem. , 25 : 321 – 321 . 398
- Decurtins , S. and Güdel , H.U. 1982 . Inorg. Chem. , 21 : 3598 – 3598 . and references [2] therein. (b) Dubicki, L., 1972, Aust. J. Chem., 25, 739. (c) Riesen, H., and Güdel, H. U., 1986, Molec. Phys., 3, 509.
- Wieghardt , K. , Chaudhuri , P. , Nuber , B. and Weiss , J. 1982 . Inorg. Chem. , : 3086 – 3086 .
- Hodgson , D. 1986 . private communication D. Hodgson is gratefully acknowledged for providing the structural data and figure 1.
- Bolster , D.E. , Gütlich , P. , Hatfield , W.E. , Kremer , S. , Müller , E.W. and Wieghardt , K. 1983 . Inorg. Chem. , 22 : 1725 – 1725 .
- Riesen , H. , Güdel , H.U. , Chaudhuri , Ph. and Wieghardt , K. 1984 . Chem. Phys. Lett. , 110 : 552 – 552 .
- Owen , J. and Harris , E.A. 1972 . Electron Paramagnetic Resonance , Edited by: Geschwind , S. 427 – 427 . Plenum Press .
- Shigi , H. and Tanabe , Y. 1982 . J. phys. Soc. Japan , 51 : 1415 – 1415 .
- Anderson , P.W. 1963 . Solid St. Phys. , 14 : 99 – 99 .
- Dubicki , L. and Tanabe , Y. 1977 . Molec. Phys. , 34 : 1531 – 1531 . Note that there are typographical errors in table 3 of this reference.
- Abragam , A. and Bleaney , B. 1970 . Electron Paramagnetic Resonance of Transition Ions , Clarendon Press .
- Sugano , S. , Tanabe , Y. and Kamimura , H. 1970 . Multiplets of Transition-Metal Ions in Crystals , Academic Press .
- Piepho , S.B. and Schatz , P.N. 1983 . Group Theory in Spectroscopy , Wiley .
- Kremer , S. 1985 . Inorg. Chem. , 24 : 887 – 887 .
- Ferguson , J. and Van Oosterhout , B. 1979 . J. Luminesc. , 18/19 : 165 – 165 .
- Naito , M. 1973 . J. phys. Soc. Japan , 34 : 1491 – 1491 .
- Riesen , H. and Güdel , H.U. 1987 . J. chem. Phys. , (submitted).
- Hay , P.J. , Thibeault , J.C. and Hoffmann , R.J. 1975 . J. Am. chem. Soc. , 97 : 4884 – 4884 .
- Leuenberger , B. and Güdel , H.U. 1986 . Inorg. Chem. , 25 : 181 – 181 .
- Howell , J. , Rossi , A. , Wallace , D. , Haraki , K. and Hoffmann , R. 1977 . Quant. Chem. Prog. Exch. , Cr+1 d functions were used. Charge iteration on both chromium centres was performed manually. The automatic charge iteration does not fulfil the convergence criteria since the program ICON8 does not recognize symmetries and equivalencies within a molecule.
- Riesen , H. and Güdel , H.U. 1984 . Inorg. Chem. , 23 : 1880 – 1880 . The tetragonal parameters of this reference are related to the trigonal parameters used in the present work by the following transformations:
- Kupka , H. 1980 . Molec. Phys. , 39 : 849 – 849 . (b) Kühn, K., Wasgestian, F., and Kupka, H., 1981, J. phys. Chem., 85, 665. (c) Mvele, M., and Wasgestian, F., 1986, Spectrochim. Acta A, 42, 775.