N-heterocyclic phosphenium and phosphido nickel complexes supported by a pincer ligand framework

2016 ◽  
Vol 45 (5) ◽  
pp. 1918-1929 ◽  
Author(s):  
Deirdra A. Evers-McGregor ◽  
Mark W. Bezpalko ◽  
Bruce M. Foxman ◽  
Christine M. Thomas
Keyword(s):  
Nickel Complexes ◽  
Tridentate Ligand ◽  
Pincer Ligand ◽  
Redox States

A tridentate ligand framework containing a central N-heterocyclic phosphenium cation (NHP+) has been coordinated to nickel. Among the compounds reported is a series of [(PPP)Ni]20/+/2+ dimers in three different redox states.

Nickel complexes of ligands derived from (o-hydroxyphenyl) dichalcogenide: delocalised redox states of nickel and o-chalcogenophenolate ligands

2019 ◽  
Vol 48 (46) ◽  
pp. 17355-17363 ◽  
Author(s):  
Sridhar Banerjee ◽  
Debobrata Sheet ◽  
Subhash Sarkar ◽  
Partha Halder ◽  
Tapan Kanti Paine
Keyword(s):  
Metal Ion ◽  
Nickel Complexes ◽  
Redox States ◽  
Square Planar

The monoanionic square planar S = 1/2 nickel complexes of dianionic o-chalcogenophenolate ligands display delocalised redox states of the metal ion and ligands.

Transfer hydrogenation of ketones catalyzed by nickel complexes bearing an NHC [CNN] pincer ligand

2019 ◽  
Vol 33 (6) ◽  
pp. e4932 ◽  
Author(s):  
Zijing Wang ◽  
Xiaoyan Li ◽  
Shangqing Xie ◽  
Tingting Zheng ◽  
Hongjian Sun
Keyword(s):  
Nickel Complexes ◽  
Transfer Hydrogenation ◽  
Pincer Ligand

Synthesis and Reactivity of Silyl Iron, Cobalt, and Nickel Complexes Bearing a [PSiP]-Pincer Ligand via Si–H Bond Activation

2013 ◽  
Vol 32 (11) ◽  
pp. 3227-3237 ◽  
Author(s):  
Siquan Wu ◽  
Xiaoyan Li ◽  
Zichang Xiong ◽  
Wengang Xu ◽  
Yunqiang Lu ◽  
...  
Keyword(s):  
Bond Activation ◽  
Nickel Complexes ◽  
Pincer Ligand ◽  
Iron Cobalt ◽  
Cobalt And Nickel

EPR study of intramolecular dynamics in o-semiquinonic nickel complexes with PCP-pincer ligand in solution

2004 ◽  
pp. 2957 ◽  
Author(s):  
Konstantin A. Kozhanov ◽  
Michael P. Bubnov ◽  
Vladimir K. Cherkasov ◽  
Georgy K. Fukin ◽  
Gleb A. Abakumov
Keyword(s):  
Nickel Complexes ◽  
Intramolecular Dynamics ◽  
Pincer Ligand ◽  
Pcp Pincer

Monomeric nickel hydroxide stabilized by a sterically demanding phosphorus–nitrogen PN3P-pincer ligand: synthesis, reactivity and catalysis

2018 ◽  
Vol 47 (45) ◽  
pp. 16057-16065 ◽  
Author(s):  
Changguang Yao ◽  
Priyanka Chakraborty ◽  
Emanuele Aresu ◽  
Huaifeng Li ◽  
Chao Guan ◽  
...  
Keyword(s):  
Nickel Hydroxide ◽  
Nickel Complexes ◽  
Pincer Ligand ◽  
Sterically Demanding ◽  
Ligand Synthesis

Various new nickel complexes and amides are synthesized using monomeric nickel hydroxide (PN3P)Ni(OH) (3) as the precursor or catalyst.

Sulphur-nitrogen chelating agents. VII. Five- and six-coordinate complexes of cobalt(II), nickel(II), and copper(II) with an S-N-S tridentate ligand

1969 ◽  
Vol 22 (9) ◽  
pp. 1817 ◽  
Author(s):  
SE Livingstone ◽  
JD Nolan
Keyword(s):  
High Spin ◽  
Electronic Spectra ◽  
Copper Complexes ◽  
Chelating Agents ◽  
Nickel Complexes ◽  
Tridentate Ligand ◽  
Octahedral Complex ◽  
Halide Complexes

Mono-ligand complexes of the tridentate ligand N-(2-methylthiophenyl)- 2?-methylthiophenylmethyleneimine (SNS) of the type MX2(SNS) (M = Co, Ni, Cu; X = Cl, Br, I, or FCS) have been prepared. The electronic spectra indicate that the cobalt halide complexes are five-coordinate, whereas the complex Co(NCS)2- (SNS) and the nickel complexes are six- coordinate and polymeric. The copper complexes CuX2(SNS) (X = Cl, Br) are possibly five-coordinate. ��� The bis-complexes of nickel [Ni(SNS)2]X2 (X = ClO4, BF4) are high- spin but the complex [Co(SNS)2](ClO4)2 appears to be a rare example of a low-spin octahedral complex of cobalt(II).

scholarly journals Nickel(II) carbonyl, ammonia, and acetonitrile complexes supported by a pyridine dipyrrolide pincer ligand

2020 ◽  
Vol 76 (11) ◽  
pp. 1741-1747
Author(s):  
H. V. Rasika Dias ◽  
Abhijit Pramanik
Keyword(s):  
Carbon Monoxide ◽  
Crystal Structures ◽  
Free Ligand ◽  
Nickel Complexes ◽  
Planar Geometry ◽  
Pincer Ligand ◽  
Donor Ligand ◽  
Square Planar ◽  
Coordination Spheres

The synthesis, isolation and crystal structures of nickel(II) carbonyl, acetonitrile and ammonia complexes supported by a dianionic, pyridine dipyrrolide pincer ligand [pyrr2py]2−, namely, carbonyl[2,2′-(pyridine-2,6-diyl)bis(3,5-di-p-tolylpyrrolido-κN)]nickel(II), [Ni(C41H33N3)(CO)], ammine[2,2′-(pyridine-2,6-diyl)bis(3,5-di-p-tolylpyrrolido-κN)]nickel(II), [Ni(C41H33N3)(NH3)], and (acetonitrile-κN)[2,2′-(pyridine-2,6-diyl)bis(3,5-di-p-tolylpyrrolido-κN)]nickel(II), [Ni(C41H33N3)(CH3CN)], as well as the free ligand 2,6-bis(3,5-di-p-tolylpyrrol-2-yl)pyridine, C41H35N3 or [pyrr2py]H2 are reported. The nickel complexes are four-coordinate and adopt a square-planar geometry. The CO stretch of the nickel-bound carbon monoxide ligand of [pyrr2py]Ni(CO) has been observed at 2101 cm−1. The ammonia and acetonitrile complexes, [pyrr2py]Ni(NH3) and [pyrr2py]Ni(NCMe) feature all-nitrogen coordination spheres around nickel consisting of different N-donor ligand types.

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