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Syntheses and Characterization of New Copper Complexes with the Heterocyclic Thione, AMTTO. X‐Ray Structures of [Cu(AMTTO)Cl 2 ], [Cu(AMTTO) 2 ]Cl, and [Cu(AMTTO)(PPh 3 ) 2 Cl] (AMTTO = 4‐Amino‐6‐methyl‐1, 2, 4‐triazine‐3‐thione‐5‐one)
Author(s) -
Ghassemzadeh Mitra,
Adhami Forough,
Heravi Majid M.,
Taeb Abas,
Chitsaz Soheila,
Neumüller Bernhard
Publication year - 2002
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 - 10.1002/1521-3749(200213)628:13<2887::aid-zaac2887>3.0.co;2-b
Subject(s) - monoclinic crystal system , orthorhombic crystal system , crystallography , denticity , chemistry , crystal structure , molecule , infrared spectroscopy , hydrogen bond , sulfur , ligand (biochemistry) , stereochemistry , biochemistry , receptor , organic chemistry
The complexes [Cu(AMTTO)Cl 2 ] ( 2 ), [Cu(AMTTO) 2 ]Cl ( 3 ), and [Cu(AMTTO)(PPh 3 ) 2 Cl] ( 4 ) have been prepared and characterized by IR spectroscopy and elemental analyses. Also single‐crystal X‐ray diffraction studies on compound 2 , 3 and 4 revealed that AMTTO acts in 2 as a bidentate ligand via nitrogen and sulfur atoms, in 3 and 4 as a monodentate via sulfur atoms. Complex 3 was already mentioned in literature, but the structure was not described in detail. The molecules in 2 form infinite chains through additional weak Cu—S interactions along [010] indicating the Jahn‐Teller distortion of the d 9 ion Cu 2+ . The infinite chains are connected by hydrogen bonding along [100]. Crystal data for 2 at —80°C: monoclinic, space group P2 1 /m, a = 666.7(1), b = 609.4(1), c = 1132.6(2) pm, b = 95.46(2)°, Z = 2, R 1 = 0.0365; for 3 at —80°C: orthorhombic, space group Pbcn, a = 1291.2(2), b = 1146.5(1), c = 1000.5(1) pm, Z = 4, R 1 = 0.0315; for 4 at —80°C: monoclinic, space group, P2 1 /n, a = 879.4(1), b = 1849.3(2), c = 2293.8(3) pm, β = 92.38(1)°, Z = 4, R 1 = 0.0688.