Premium
The Crystal and Molecular Structure of [Co(tmen) 3 ](C 7 H 7 SO 3 ) 3 ·2 H 2 O and [Co(tmen) 3 ](CH 3 SO 3 ) 2 ·EtOH·1/2 H 2 O (tmen = 2,3‐dimethylbutane‐2,3‐diamine)
Author(s) -
Brunner Hans,
Ludi Andreas,
Raselli Andrea,
Bürgi HansBeat
Publication year - 1996
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19960790610
Subject(s) - chemistry , octahedron , crystallography , diamine , crystal structure , ion , inorganic compound , organic chemistry , polymer chemistry
The molecular structure of the two complex ions [Co(tmen) 3 ] 3+ and [Co(tmen) 3 ] 2+ (tmen = 2,3‐dimethylbutane‐2,3‐diamine) have been determined at 100 K. They show a strong trigonal distortion of the octahedral CoN 6 core. The twist angle is 26.2(2.8)° for Co II and 43.9(9)° for Co III . Average CoN distances are 2.193(13) Å (Co II ) and 1.997(2) Å (Co III ), 0.02 Å longer than for the main body of Co III amines.