TY - JOUR
T1 - Adducts of bis-(acetylacetonato)-zinc(II) with 1,10-phenanthroline and 2,2′-bipyridine
AU - Sanjaya, Brahma
AU - Sachin, H. P.
AU - Shivashankar, S. A.
AU - Narasimhamurthy, T.
AU - Rathore, R. S.
PY - 2008/3/12
Y1 - 2008/3/12
N2 - In each of the zinc(II) complexes bis-(acetyl-acetonato-2 O,O′)(1,10-phenanthroline-2 N,N′)zinc(II), [Zn(C5H7O2)2(C12H8N2)], (I), and bis-(acetyl-acetonato-2 O,O′)(2,2′-bipyridine-2 N,N′)zinc(II), [Zn(C5H7O2)2(C10H8N2)], (II), the metal center has a distorted octa-hedral coordination geometry. Compound (I) has crystallographically imposed twofold symmetry, with Z′ = 0.5. The presence of a rigid phenanthroline group precludes intra-molecular hydrogen bonding, whereas the rather flexible bipyridyl ligand is twisted to form an intra-molecular C - H⋯O inter-action [the chelated bipyridyl ligand is nonplanar, with the pyridyl rings inclined at an angle of 13.4 (1)°]. The two metal complexes are linked by dissimilar C - H⋯O inter-actions into one-dimensional chains. The present study demonstrates the distinct effects of two commonly used ligands, viz. 1,10-phenanthroline and 2,2′-bipyridine, on the structures of metal complexes and their assembly.
AB - In each of the zinc(II) complexes bis-(acetyl-acetonato-2 O,O′)(1,10-phenanthroline-2 N,N′)zinc(II), [Zn(C5H7O2)2(C12H8N2)], (I), and bis-(acetyl-acetonato-2 O,O′)(2,2′-bipyridine-2 N,N′)zinc(II), [Zn(C5H7O2)2(C10H8N2)], (II), the metal center has a distorted octa-hedral coordination geometry. Compound (I) has crystallographically imposed twofold symmetry, with Z′ = 0.5. The presence of a rigid phenanthroline group precludes intra-molecular hydrogen bonding, whereas the rather flexible bipyridyl ligand is twisted to form an intra-molecular C - H⋯O inter-action [the chelated bipyridyl ligand is nonplanar, with the pyridyl rings inclined at an angle of 13.4 (1)°]. The two metal complexes are linked by dissimilar C - H⋯O inter-actions into one-dimensional chains. The present study demonstrates the distinct effects of two commonly used ligands, viz. 1,10-phenanthroline and 2,2′-bipyridine, on the structures of metal complexes and their assembly.
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U2 - 10.1107/S0108270108003818
DO - 10.1107/S0108270108003818
M3 - Article
C2 - 18322327
AN - SCOPUS:40449124703
VL - 64
JO - Acta Crystallographica Section C: Crystal Structure Communications
JF - Acta Crystallographica Section C: Crystal Structure Communications
SN - 0108-2701
IS - 3
ER -