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Fe III in a low‐spin state in caesium bis[3‐ethoxysalicylaldehyde 4‐methylthiosemicarbazonato(2–)‐κ 3 O 2 , N 1 , S ]ferrate(III) methanol monosolvate
Author(s) -
Powell Robyn E.,
Schwalbe Carl H.,
Tizzard Graham J.,
Koningsbruggen Petra J. van
Publication year - 2014
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229614008158
Subject(s) - crystallography , chemistry , octahedron , caesium , crystal structure , ligand (biochemistry) , molecule , imine , spin states , stereochemistry , inorganic chemistry , biochemistry , receptor , organic chemistry , catalysis
The synthesis and crystal structure (at 100 K) of the title compound, Cs[Fe(C 11 H 13 N 3 O 2 S 2 ) 2 ]·CH 3 OH, is reported. The asymmetric unit consists of an octahedral [Fe III ( L ) 2 ] − fragment, where L 2− is 3‐ethoxysalicylaldehyde 4‐methylthiosemicarbazonate(2−) {systematic name: [2‐(3‐ethoxy‐2‐oxidobenzylidene)hydrazin‐1‐ylidene](methylamino)methanethiolate}, a caesium cation and a methanol solvent molecule. Each L 2− ligand binds through the thiolate S, the imine N and the phenolate O atoms as donors, resulting in an Fe III S 2 N 2 O 2 chromophore. The O , N , S ‐coordinating ligands are orientated in two perpendicular planes, with the O and S atoms in cis positions and the N atoms in trans positions. The Fe III cation is in the low‐spin state at 100 K.