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Autor:
Conrad A. P. Goodwin, Benjamin W. Stein, Jaqueline L. Kiplinger, Ökten Üngör, Ross James Beattie, Brian L. Scott, Samuel M. Greer
Publikováno v:
Chemical Communications. 57:595-598
We report two anionic diphosphametallocenates, [K(2.2.2-crypt)][M(PC4Me4)2] (M = Cr, 2-Cr; Fe, 2-Fe). Both are low-spin (S = ½) by EPR spectroscopy and SQUID magnetometry. This contrasts the high-spin (S = 3/2) ferrocenate, [K(2.2.2-crypt)][Fe(C5H2-