Mono- and Binuclear Molybdenum Complexes Incorporating 4-(4-Hydroxyphenyl)pyridine: Metal–Metal Interactions Across an Asymmetric Bridging Ligand

1992 ◽  
Vol 31 (11) ◽  
pp. 1515-1518 ◽  
Author(s):  
Amitava Das ◽  
John C. Jeffery ◽  
John P. Maher ◽  
Jon A. McCleverty ◽  
Erik Schatz ◽  
...  
Keyword(s):  
Molybdenum Complexes ◽  
Metal Interactions ◽  
Bridging Ligand ◽  
Metal Metal

Mono- and Bi-nuclear Complexes of the Doubly Bidentate, Bridging Ligand 4,6-Di(2-pyridyl)pyrimidine.

1998 ◽  
Vol 51 (5) ◽  
pp. 371 ◽  
Author(s):  
Ian G. Phillips ◽  
Peter J. Steel
Keyword(s):  
Transition Metal Complexes ◽  
Binuclear Complexes ◽  
Two Dimensional ◽  
Lumo Energy ◽  
Metal Interactions ◽  
Bridging Ligand ◽  
Energy Gaps ◽  
Metal Metal ◽  
Homo Lumo ◽  
Metal Ligand

Thirteen mononuclear, homobinuclear and heterobinuclear transition metal complexes of 4,6-di(2- pyridyl)pyrimidine have been prepared. Assignments of the 1H n.m.r. spectra of the molybdenum(0) and ruthenium(II) complexes were achieved by a combination of one- and two-dimensional n.m.r. techniques, especially 1D-TOCSY. For the ruthenium complexes, electronic absorption spectroscopy and cyclic voltammetry were used to probe the nature of the metal{ligand and, for the binuclear complexes, metal-metal interactions. The complexes have low HOMO−LUMO energy gaps. Meta-metal interactions are shown to be of similar magnitude to those in complexes of the better-studied ligands 2,2′-bipyrimidine and 2,3-di(2-pyridyl)pyrazine.

scholarly journals Heterobimetallic lanthanide‐coinage metal compounds featuring possible metal‐metal interactions in the exited state

2021 ◽  
Author(s):  
Peter Werner Roesky ◽  
Milena Dahlen ◽  
Niklas Reinfandt ◽  
Chengyu Jin ◽  
Michael T. Gamer ◽  
...  
Keyword(s):  
Metal Compounds ◽  
Coinage Metal ◽  
Metal Interactions ◽  
Metal Metal

Tuning metal–metal interactions for cooperative small molecule activation

2021 ◽  
Author(s):  
Qiuran Wang ◽  
Sam H. Brooks ◽  
Tianchang Liu ◽  
Neil C. Tomson
Keyword(s):  
Small Molecule ◽  
Small Molecule Activation ◽  
Feature Article ◽  
Metal Interactions ◽  
Recent Advances ◽  
Metal Metal

This Feature Article describes recent advances in the design of multinucleating ligands that support small molecule activation chemistry.

scholarly journals Effect of Metal−Metal Interactions on Electron Transfer:  an STM Study of One-Dimensional Metal String Complexes

2004 ◽  
Vol 108 (3) ◽  
pp. 959-964 ◽  
Author(s):  
Shu-Yi Lin ◽  
I-Wen Peter Chen ◽  
Chun-hsien Chen ◽  
Ming-Hsun Hsieh ◽  
Chen-Yu Yeh ◽  
...  
Keyword(s):  
Electron Transfer ◽  
One Dimensional ◽  
Metal Interactions ◽  
Metal Metal

Metal-Metal Interactions in Heterobimetallic Complexes with Dinucleating Redox-Active Ligands

2016 ◽  
Vol 128 (7) ◽  
pp. 2452-2456 ◽  
Author(s):  
Daniël L. J. Broere ◽  
Dieuwertje K. Modder ◽  
Eva Blokker ◽  
Maxime A. Siegler ◽  
Jarl Ivar van der Vlugt
Keyword(s):  
Redox Active Ligands ◽  
Metal Interactions ◽  
Heterobimetallic Complexes ◽  
Redox Active ◽  
Metal Metal

Mixed Metal Oxide Interfaces: An Experimental and Theoretical Assessment of Secondary Metal Influences in Metal Impregnated Aluminas

1994 ◽  
Vol 368 ◽  
Author(s):  
M. Malaty ◽  
D. Singh ◽  
R. Schaeffer ◽  
S. Jansen ◽  
S. Lawrence
Keyword(s):  
Photoelectron Spectroscopy ◽  
Theoretical Calculations ◽  
Mixed Metal Oxide ◽  
X Ray Diffraction ◽  
Paramagnetic Resonance ◽  
X Ray ◽  
Mixed Metal ◽  
Metal Interactions ◽  
Metal Metal ◽  
Bimetallic System

ABSTRACTStudies of the mixed-metal interface in metal impregnated alumina have indicated the possibility of much metal-metal and metal-substrate interaction. Studies were carried out on NiCu/Al2O3 system which was evaluated to develop a better understanding of the forces that drive modification of the catalytic selectivity of Ni in the presence of Cu. Electron Paramagnetic Resonance (EPR), Powder X-ray Photoelectron Spectroscopy (XPS), X-ray Diffraction (XRD) and theoretical calculations were carried out on this bimetallic system, using Ni,Ag/Al2O3 as a reference as Ni shows negligible electron perturbation on co-adsorbance with Ag onto alumina. XRD results indicate that gross modification of the electronic fields of Ni and Cu are due to direct coupling and intercalation into the alumina matrix. As a result of this phenomena, these materials may form a good base for the development of novel ceramics based on mixed-metal interactions where the intermetallic perturbations are driven by the substrate effects.

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