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Synthesis, Crystal Structures and Properties of [Cu(L1) 2 (py) 2 (H 2 O)](H 2 O)[HL1 = N‐(5‐ethyl‐[1,3,4]–thiadiazole‐2‐yl)‐toluenesulfonamidate] and [Cu(L2) 2 (py) 2 (H 2 O)] [HL2 = N‐(5‐ethyl‐[1,3,4]–thiadiazole‐2‐yl)‐benzenesulfonamidate]
Author(s) -
Hangan Adriana,
Borras Joaquin,
LiuGonzalez Malva,
Oprean Luminita
Publication year - 2007
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/zaac.200700214
Subject(s) - denticity , crystallography , crystal structure , pyridine , electron paramagnetic resonance , chemistry , molecule , chromophore , ion , metal , stereochemistry , square pyramidal molecular geometry , medicinal chemistry , photochemistry , nuclear magnetic resonance , physics , organic chemistry
A series of new N ‐sulfonamidate ligands and their cooper(II) complexes, [Cu(N‐(5‐ethyl‐[1,3,4]‐thiadiazole‐2‐yl)‐toluenesulfonamidate) 2 (py) 2 (H 2 O)](H 2 O) ( 1 ) and [Cu(N‐(5‐ethyl‐[1,3,4]‐thiadiazole‐2‐yl)‐benzenesulfonamidate) 2 (py) 2 (H 2 O)] ( 2 ) have been synthesized and characterized. The X‐ray crystal structures of the complexes 1 and 2 have been determined. In the both two complexes, the Cu 2+ ion is five‐coordinated, forming a CuN 4 O chromophore. The ligands act as monodentate, coordinating the metal ion through a single N thiadiazole atom. The molecules from the reaction medium (pyridine and water) also participate to the coordination of Cu 2+ ion as monodentate ligands. Both two complexes have a slightly distorted square pyramidal geometry. The chemical properties of the complexes have been studied by FT‐IR, electronic and EPR spectroscopic methods.