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1,3,5‐Triamino‐1,3,5‐trideoxy‐ cis ‐inositol, a Ligand with a Remarkable Versatility for Metal Ions. Part XIII
Author(s) -
Hegetschweiler Kaspar,
Egli André,
Herdtweck Eberhardt,
Herrmann Wolfgang A.,
Alberto Roger,
Gramlich Volker
Publication year - 2005
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.200590027
Subject(s) - chemistry , orthorhombic crystal system , steric effects , crystallography , ligand (biochemistry) , stereochemistry , crystal structure , infrared spectroscopy , center (category theory) , metal , single crystal , ion , solid state , receptor , biochemistry , organic chemistry
Abstract The two neutral complexes [Re(CO) 3 (H −1 taci)] ( 1 ) and [ReO 3 (H −1 taci)] ( 2 ) (taci=1,3,5‐triamino‐1,3,5‐trideoxy‐ cis ‐inositol) were synthesized from the conventional Re I and Re VII precursors (Et 4 N) 2 [ReBr 3 (CO) 3 ] and [ReO 3 (OSnMe 3 )]. The crystal structures of 1 and 2 , which were determined by single crystal X‐ray analysis, are virtually isomorphous. Both compounds crystallize in the orthorhombic space group Pnma, Z =4; 1 : a =14.806(3), b =8.466(2), c =9.781(2) Å, 2 : a =13.050(2), b =8.732(1), c =9.061(1) Å. In both complexes, the monodeprotonated H −1 taci ligand is bonded to the Re center in an N,O,N‐coordination mode. The resulting molecular C s symmetry is retained in the crystal structure and confirmed by IR spectroscopy of solid‐state samples. The observed binding mode of the ligand is discussed in terms of steric and electronic effects.