Complexed bridging ligand, [M(bpca)2] (M = Mn(II) or Fe(II); Hbpca = bis(2-pyridylcarbonyl)amine), as a building block for linear trinuclear complexes

1998 ◽  
pp. 3351-3352 ◽  
Author(s):  
Takashi Kajiwara ◽  
Tasuku Ito
Keyword(s):  
Building Block ◽  
Bridging Ligand ◽  
Trinuclear Complexes

Fusing Nickelocene and Cyclopentadiene by Two Silyl Bridges. Synthesis and 1H, 13C, and 29Si NMR Investigation of a Paramagnetic Building Block for High-Nuclear Metallocenes

1994 ◽  
Vol 49 (6) ◽  
pp. 763-769 ◽  
Author(s):  
Monika Fritz ◽  
Johann Hiermeier ◽  
Frank H. Köhler
Keyword(s):  
Building Block ◽  
Nmr Spectra ◽  
29Si Nmr ◽  
Nmr Spectrum ◽  
Anti Isomer ◽  
Bridging Ligand ◽  
Cyclopentadienyl Anion ◽  
C Nmr

Two isomers of tetrahydro-4,4,8,8-tetramethyl-4,8-disila-s-indacene (LH2) were monodeprotonated and treated with cyclopentadienyl anion and NiBr2(THF)1,5 to give a 72% yield of the mixed nickelocene CpNi(LH) where a cyclopentadiene is fused to a nickelocene. The analysis of the paramagnetic 1H, 13C, and 29Si NMR spectra demonstrated that the syn and anti isomer of CpNi(LH) formed in a ratio of 5/1. Both isomers could be deprotonated to yield the anion CpNi(L-). According to its 13C NMR spectrum the bridging ligand L is not planar

Heterobi- and -trinuclear Complexes with an Amino(ethynyl)carbene as Bridging Ligand

2004 ◽  
Vol 630 (12) ◽  
pp. 1863-1868 ◽  
Author(s):  
Helmut Fischer ◽  
Cornelia Hartbaum ◽  
Christiane Wespel ◽  
Markus Dede
Keyword(s):  
Bridging Ligand ◽  
Trinuclear Complexes

Characterization of chelating bis[(diphenylphosphino)methyl]phenylphosphine as a bridging ligand in bi- and trinuclear complexes

1983 ◽  
Vol 22 (16) ◽  
pp. 2223-2224 ◽  
Author(s):  
Rosalvina R. Guimerans ◽  
Marilyn M. Olmstead ◽  
Alan L. Balch
Keyword(s):  
Bridging Ligand ◽  
Trinuclear Complexes

Roles of Bridging Ligand Topology and Conformation in Controlling Exchange Interactions between Paramagnetic Molybdenum Fragments in Dinuclear and Trinuclear Complexes

1997 ◽  
Vol 36 (16) ◽  
pp. 3447-3454 ◽  
Author(s):  
Vǎn Ân Ung ◽  
Alexander M. W. Cargill Thompson ◽  
David A. Bardwell ◽  
Dante Gatteschi ◽  
John C. Jeffery ◽  
...  
Keyword(s):  
Exchange Interactions ◽  
Bridging Ligand ◽  
Trinuclear Complexes

scholarly journals The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3101
Author(s):  
Kiyoshi Fujisawa ◽  
Mai Saotome ◽  
Yoko Ishikawa ◽  
David James Young
Keyword(s):  
Coordination Chemistry ◽  
Solid State ◽  
Nitrogen Atom ◽  
Transition Metal Ions ◽  
Photoluminescence Properties ◽  
State Structure ◽  
Linear Mode ◽  
Bridging Ligand ◽  
Trinuclear Complexes ◽  
Cuprophilic Interactions

Cyclic trinuclear complexes with group 11 metal (I) ions are fascinating and important to coordination chemistry. One of the ligands known to form these cyclic trinuclear complexes is pyrazolate, which is a bridging ligand that coordinates many transition metal ions in a Npz–M–Npz linear mode (Npz = pyrazolyl nitrogen atom). In these group 11 metal (I) ions, copper is the most abundant metal. Therefore, polynuclear Copper(I) complexes are very important in this field. The cyclic trinuclear Copper(I) complex [Cu(3,5-Ph2pz)]3 (3,5-Ph2pz– = 3,5-diphenyl-1-pyrazolate anion) was reported in 1988 as a landmark complex, but its photoluminescence properties have hitherto not been described. In this study, we report the photoluminescence and two different polymorphs of [Cu(3,5-Ph2pz)]3 and its derivative [Cu(3-Me-5-Phpz)]3 (3-Me-5-Phpz– = 3-metyl-5-phenyl-1-pyrazale anion). The substituents in [Cu(3-Me-5-Phpz)]3 cause smaller distortions in the solid-state structure and a red-shift in photoluminescence due to the presence of intermolecular cuprophilic interactions.

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