Studies on the metal-amide bond. XVIII. The crystal and molecular structure of [N,N′-bis(2′-pyridinecarboxamido)-1,3-propane] nickel(II) monohydrate

Frederick S. Stephens*, Roberty S. Vagg

*Corresponding author for this work

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

[N,N′-bis(2′-pyridinecarboxamido)-1,3-propane] - nickel(II) monohydrate, C15H16N4O3Ni is monoclinic, space group P21/c, with a = 7.174(4), b = 18.590(3), c = 11.641(5) Å, β = 110.69(2)°, Z = 4. The structure was refined to R = 0.030 for 1826 diffractometer data using full-matrix least-squares methods. The N4-ligand coordinates to the nickel atom in an irregular square plane [average Ni-Namide 1.864(4), Ni-Npyridine 1.912(3) Å and Namide-Ni-Namide 96.0(1), Npyridine-Ni-Npyridine 98.7(1)°] with a tetrahedral twist of 15.9° at the nickel atom. The two picolinamide units are related by an approximate two-fold axis and the enforced strain in the molecule results in significant non-planar distortions in the amide chelate rings and the pyridyl rings. The plane of the chelate molecule lies approximately perpendicular to [100] and the lattice water molecule hydrogen bonds amide oxygen atoms to form chains parallel to [101].

Original languageEnglish
Pages (from-to)17-24
Number of pages8
JournalInorganica Chimica Acta
Volume90
Issue number1
DOIs
Publication statusPublished - 15 Nov 1984

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