Premium
Transition‐Metal Complexes with the Novel Scorpionate Ligand Dihydrobis‐(tetrazolyl)borate: Synthesis and Characterization of Infinite Two‐Dimensional Metal‐Ligand Frameworks and One‐Dimensional Water Substructures
Author(s) -
Janiak Christoph,
Scharmann Tobias G.,
Brzezinka KlausWerner,
Reich Peter
Publication year - 1995
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19951280402
Subject(s) - chemistry , crystallography , metal , ligand (biochemistry) , boron , molecule , crystal structure , transition metal , hydrogen bond , paramagnetism , nitrogen , water of crystallization , inorganic chemistry , stereochemistry , organic chemistry , catalysis , biochemistry , physics , receptor , quantum mechanics
Dihydrobis(tetrazolyl)borate metal compounds of the composition [M(L) 2 {μ‐H 2 B(CHN 4 ) 2 } 2 ] n for M = Mn, Fe, Co, Zn, Cd with L = H 2 O and for M = Cu with L = NH 3 are obtained from metal salts and K[H 2 B(CHN 4 ) 2 ]. Single‐crystal X‐ray studies reveal the formation of two‐dimensional rhombic grid sheets through the bridging action of the bis(tetrazolyl)borate ligands. Each metal atom is octahedrally coordinated with two trans L ligands and four H 2 B(CHN 4 ) − 2nitrogen donors. Two additional, hydrogen‐bonded water molecules occupy the rhombic openings in the compounds with M = Mn, Fe, Co, Zn, and Cd. The water of crystallization is held in place through hydrogen bonding from the water ligands and to the nitrogen atoms to give a substructure of parallel kinked water chains. Temperature‐variable magnetic measurements show a Curie‐Weiss behavior for the paramagnetic complexes with M = Mn, Fe, Co, and Cu.