The Crystal Structure of Bis(pyridine-2-carboxamido)nickel(II) Dihydrate
- 1 March 1967
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 40 (3), 515-521
- https://doi.org/10.1246/bcsj.40.515
Abstract
The orange-red, diamagnetic crystals of [Ni(pia)2]·2H2O (piaH: pyridine-2-carboxamide) have been subjected to X-ray crystallographic analysis. They are orthorhombic, space group Pm21b-C2v2, with two formula units in a cell of dimensions: a=7.61, b=20.19 and c=4.46 Å. The crystals consist of planar molecules in which Ni(II) exhibits a square planar coordination and the two ligands are coordinated to the central nickel atom with four nitrogen atoms in trans-configuration. The molecules are tilted about 40° with respect to the plane (001), and are piled up above one another along the c-axis to form columns. These columns are linked with each other by intermolecular hydrogen bonds of N–H···O type, thus forming layers parallel to the plane (010). The layers are piled up along the b-axis by way of two water molecules which are hydrogen-bonded to the oxygen atoms of the amide groups. There exist stacking faults along this direction.Keywords
This publication has 8 references indexed in Scilit:
- The Crystal Structure of trans-Diaquo-bis(pyridine-2-carboxamide)-nickel(II) Chloride, [Ni(H2O)2(piaH)2]Cl2Bulletin of the Chemical Society of Japan, 1967
- The crystal and molecular structure of picolinamideActa Crystallographica, 1966
- Crystallographic studies of the biuret reaction. II. Structure of bis-biuret-copper(II) dichloride, Cu(NH2CONHCONH2)2C12Acta Crystallographica, 1966
- Parameter interaction in least squares structure refinementActa Crystallographica, 1961
- Crystallographic studies of the biuret reaction. I. Potassium bis-biuret cuprate(II) tetrahydrate, K2[Cu(NHCONHCONH)2].4H2OActa Crystallographica, 1961
- Crystallographic Studies of the Biuret ReactionNature, 1959
- Spectrochemical Study of Microscopic Crystals. V. Relation between Dichroism and Direct Interaction between Metal Atoms in the Crystals of Bis (Dimethylglyoximo)-Copper (II), Nickel (II) and Platinum (II)Bulletin of the Chemical Society of Japan, 1954
- The structure of nickel dimethylglyoximeActa Crystallographica, 1953