Premium
Crystallisation Solvent Influence on the Crystal Structures of Mn II and Ni II Complexes with 2,6‐bis(1‐salicyloylhydrazonoethyl)pyridine, H 4 daps
Author(s) -
Bermejo Manuel R.,
Sousa Antonio,
Fondo Matilde,
González Ana M.,
Hoyos Olga L.,
Pedrido Rosa,
Maestro Miguel A.,
Mahía José
Publication year - 2000
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/(sici)1521-3749(200002)626:2<506::aid-zaac506>3.0.co;2-e
Subject(s) - chemistry , pyridine , nickel , dichloromethane , solvent , crystal structure , crystallization , crystallography , manganese , methanol , ligand (biochemistry) , stereochemistry , medicinal chemistry , organic chemistry , biochemistry , receptor
Neutral manganese and nickel complexes of the empirical formulae Mn(H 2 daps)(H 2 O) 0.5 and Ni(H 2 daps) · (H 2 O) 1.5 (CH 3 CN) have been prepared by electrochemical syntheses. The structures of the complexes formed from solvents with different donor ability were investigated. Recrystallisation of Mn(H 2 daps)(H 2 O) 0.5 from pyridine and ethanol yields [Mn(H 2 daps)(py) 2 ] 1 and [Mn(H 2 daps)(C 2 H 5 OH) · (H 2 O)] 2 . Slow evaporation of dichloromethane and methanol solutions of Ni(H 2 daps)(H 2 O) 1.5 (CH 3 CN) allows the isolation of single crystals of [Ni 2 (H 2 daps) 2 ] · CH 2 Cl 2 4 and [Ni 2 (H 2 daps) 2 (CH 3 OH) 2 ] · 3 CH 3 OH · H 2 O 5 , suitable for X‐ray diffraction studies. Recrystallisation of 4 from pyridine yields [Ni 2 (H 2 daps) 2 (py) 2 ] · CH 2 Cl 2 6 , previously characterised by us. This study shows the versatility of the H 4 daps ligand and the influence that the crystallisation solvent can have on the crystal structure of these complexes.