Crystal structure of (2-amino-7-methyl-4-oxidopteridine-6-carboxyl-ato-κ(3) O (4),N (5),O (6))aqua-(1,10-phenanthroline-κ(2) N,N')zinc trihydrate.

Siddhartha S Baisya,Baidyanath Ghosh,Parag S Roy

doi:10.1107/s2056989015014619

Siddhartha S Baisya, Baidyanath Ghosh + Show 1 more

Open Access

https://doi.org/10.1107/s2056989015014619

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Abstract

In the title compound, [Zn(C8H5N5O3)(C12H8N2)(H2O)]·3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxylate ligand, a bidentate ancillary 1,10-phenanthroline (phen) ligand and a water molecule complete a distorted octahedral coordination geometry around the ZnII atom. The pterin ligand forms two chelate rings. The phen and pterin ring systems are nearly perpendicular [dihedral angle = 85.16 (5)°]. Classical N—H⋯O, O—H⋯N and O—H⋯O hydrogen bonds and weak C—H⋯O hydrogen bonds link the complex molecules and lattice water molecules into a three-dimensional network. π–π stacking contacts are observed as well, with centroid-to-centroid distances of 3.5679 (14), 3.7004 (14), 3.6641 (15), 3.6974 (13) and 3.3412 (12) Å.

Highlights

In the title compound, [Zn(C8H5N5O3)(C12H8N2)(H2O)]3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6carboxylate ligand, a bidentate ancillary 1,10-phenanthroline ligand and a water molecule complete a distorted octahedral coordination geometry around the ZnII atom
H atoms treated by a mixture of independent and constrained refinement max = 0.64 e Å3
Thanks are due to the CSMCRI, Bhavnagar, Gujrat, India, for the X-ray structural data and the University of North Bengal for infrastructure

Summary

Introduction

In the title compound, [Zn(C8H5N5O3)(C12H8N2)(H2O)]3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6carboxylate ligand, a bidentate ancillary 1,10-phenanthroline (phen) ligand and a water molecule complete a distorted octahedral coordination geometry around the ZnII atom. Received 29 July 2015; accepted 3 August 2015 The pterin ligand forms two chelate rings.

Results

Conclusion