TY - JOUR
T1 - Studies on the metalamide bond. II. The crystal structure of the deprotonated copper(II) complex of N,N′-bis-(2′-pyridinecarboxamide)-1,2-benzene
AU - Chapman, Ross L.
AU - Stephens, Frederick S.
AU - Vagg, Robert S.
PY - 1980
Y1 - 1980
N2 - Aqua [N,N′bis(2′-pyridinecarboxamido)-1,2-benzene]copper(II), C18H14N4O3Cu, is triclinic, space group P1, with a = 7.443(3), b = 9.560(2), c = 11.197(4), Å, α = 92.63(2), β = 100.02(2), γ = 84.50(2)°, Z = 2. The structure was refined to R = 0.038 for 2813 diffractometer data using least-squares methods. The copper atom is five-coordinate, the ligand acting as a planar N4 tetradentated in encompassing the base of a distorted square-based pyramid [CuN(amide) 1.933(2) Å, average CuN (pyridine) 2.023(2) Å, N(amide)CuN(amide) 82.8°, N(pyridine)CuN(pyridine) 110.7°] and with the Cu atom raised 0.19 Å above the N4 plane towards the apical water molecule (CuO 2.286(2) Å). The water molecule hydrogen bonds carbonyl oxygen atoms of adjacent chelate molecules, which are packed in layers parallel to (212. An intra-molecular steric interaction between the two H atoms in the 6-positions of the pyridine rings (H{A figure is presented}H 1.98 Å) is evident.
AB - Aqua [N,N′bis(2′-pyridinecarboxamido)-1,2-benzene]copper(II), C18H14N4O3Cu, is triclinic, space group P1, with a = 7.443(3), b = 9.560(2), c = 11.197(4), Å, α = 92.63(2), β = 100.02(2), γ = 84.50(2)°, Z = 2. The structure was refined to R = 0.038 for 2813 diffractometer data using least-squares methods. The copper atom is five-coordinate, the ligand acting as a planar N4 tetradentated in encompassing the base of a distorted square-based pyramid [CuN(amide) 1.933(2) Å, average CuN (pyridine) 2.023(2) Å, N(amide)CuN(amide) 82.8°, N(pyridine)CuN(pyridine) 110.7°] and with the Cu atom raised 0.19 Å above the N4 plane towards the apical water molecule (CuO 2.286(2) Å). The water molecule hydrogen bonds carbonyl oxygen atoms of adjacent chelate molecules, which are packed in layers parallel to (212. An intra-molecular steric interaction between the two H atoms in the 6-positions of the pyridine rings (H{A figure is presented}H 1.98 Å) is evident.
UR - http://www.scopus.com/inward/record.url?scp=0002138308&partnerID=8YFLogxK
U2 - 10.1016/S0020-1693(00)90500-0
DO - 10.1016/S0020-1693(00)90500-0
M3 - Article
AN - SCOPUS:0002138308
SN - 0020-1693
VL - 43
SP - 29
EP - 33
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
IS - C
ER -