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The structure of racemic μ‐amido‐μ‐peroxo‐bis[bis(ethylenediamine)cobalt(III)] trithiocyanate hydrate
Author(s) -
Thewalt Ulf
Publication year - 1972
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19723930102
Subject(s) - ethylenediamine , orthorhombic crystal system , hydrate , cobalt , chemistry , crystal structure , crystallography , stereochemistry , inorganic chemistry , organic chemistry
Racemic μ‐amido‐μ‐peroxo‐bis[bis(ethylenediamine)cobalt(III)] trithiocynate hydrate, DL‐[(en) 2 Co · μ(NH 2 , O 2 )· Co(en 2 )](SCN) 3 · H 2 O, crystallizes in the orthorhombic space group Pbca with lattice constants a = 26.766(2), b = 12.727(1) and c = 14.461(1) Å; Z = 8. Intensity data were colleted visually from W EISSENBERG photographs. The structure was determined by P ATTERSON methods and refined by F OURIER and least‐squares techniques. The final R index for 2172 observed reflections of non‐zero weight is 0.076. The cobalt atoms are octahedrally coordinated. The five‐membered central ring of the cations is considerably puckered, The OO bond distance in the O 2 bridge is 1.46 Å. This geometry indicates that the O 2 bridge is properly described as a peroxo group.