Structural Relationships between the Hemiporphyrazine Macrocyclic Ligand and its Metal Complexes. I.: Saddle Shaped Neutral Ligand Hydrate, C26H16N8·‐H2O, and Nickel Complex, [Ni(C26H14N8)]
作者:
Shie‐Ming Peng,
Yu Wang,
Tsang‐Feng Ho,
I‐Chen Chango,
Chia‐Pin Tang,
Chiung‐Jane Wang,
期刊:
Journal of the Chinese Chemical Society
(WILEY Available online 1986)
卷期:
Volume 33,
issue 1
页码: 13-21
ISSN:0009-4536
年代: 1986
DOI:10.1002/jccs.198600002
出版商: WILEY‐VCH Verlag
关键词: Crystal structure;hemiporhyrazine;macrocyclic ligand and nickel complex
数据来源: WILEY
摘要:
AbstractCrystal and molecular structures of the neutral ligand hydrate, C24H16N8·H2O, and the diamagnetic nickel(II) complex, [Ni(C C24H16N8)], have been determined by three‐dimensional X‐ray crystallography. Pertinent data are: C24H16N8·H2O, Pnmm withZ=2,a=4.6142(3),b=14.7687(7), c=15.0650(5) Å,R=0.068,Rw= 0.038; [Ni(C24H16N8), 12/cwithZ=4,a=22.0137(11),b=3.7637(4),c=23.4742(11) Å, β=92.7(1)°,R= 0.039,Rw=0.025. The overall conformations of the neutral ligand and the Ni(II) complex are similar, both have a pronounced saddle shape. The Ni(II) ‐N bond distances in the Ni‐complex are 1.861(2) and 1.998(2) Å. The distances from nitrogen atoms to the center of the ring in free ligand are 2.020(3) and 2.220(3)Å, which arc significantly longer than those of Ni(II) complex A detailed comparison about the core size with similar liga
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