Intramolecular, base-induced formation of a metal-metal bond in [L2MoIII2(.mu.-OH)(.mu.-CH3CO2)2]3+ (L = 1,4,7-trimethyl-1,4,7-triazacyclononane). Crystal structures of [L2MoIII2(.mu.-OH)(.mu.-CH3CO2)2](ClO4)3.cntdot.H2O and [L2MoIII2(.mu.-O)(.mu.-CH3CO2)2](ClO4)(BF4).cntdot.H2O and of the mixed-valence complex [L2MoIIIMoIV(.mu.-O)(.mu.-CH3CO2)2](ClO43.cntdot.H2O

1989 ◽  
Vol 28 (3) ◽  
pp. 432-440 ◽  
Author(s):  
Karl Wieghardt ◽  
Ursula Bossek ◽  
Ademir Neves ◽  
Bernhard Nuber ◽  
Johannes Weiss
Keyword(s):  
Crystal Structures ◽  
Mixed Valence ◽  
Metal Bond ◽  
Metal Metal ◽  
Mixed Valence Complex

scholarly journals Tetrazine-Based Ligand Transformation Driving Metal–Metal Bond and Mixed-Valence HgI/HgII

ACS Omega ◽  
2018 ◽  
Vol 3 (8) ◽  
pp. 10273-10277 ◽  
Author(s):  
Maykon A. Lemes ◽  
Hilarie N. Stein ◽  
Bulat Gabidullin ◽  
Stephan N. Steinmann ◽  
Muralee Murugesu
Keyword(s):  
Mixed Valence ◽  
Metal Bond ◽  
Metal Metal

Dicarbonylcyclopentadienyliridium, (η-C5H5)Ir(CO)2, as a ligand

1999 ◽  
Vol 77 (8) ◽  
pp. 1327-1335 ◽  
Author(s):  
Faming Jiang ◽  
Kumar Biradha ◽  
Weng Kee Leong ◽  
Roland K Pomeroy ◽  
Michael J Zaworotko
Keyword(s):  
Crystal Structures ◽  
Time Scale ◽  
Room Temperature ◽  
Donor Ligand ◽  
Carbonyl Ligands ◽  
Metal Bond ◽  
Metal Metal

The following complexes, in which CpIr(CO)2 acts as a 2e donor ligand, have been prepared: Cp(OC)2IrW(CO)5 (1), Cp(OC)2IrRu(CO)3(SiCl3)2, Cp(OC)2IrOs(CO)3(GeCl3)(Cl) (2), Cp(OC)2IrOs(CO)3(X)2 (X = Cl, Br (3), I). The characterization of the complexes included the crystal structures of 1, 2, and 3, which reveal that all contain an unbridged metal-metal bond. The carbonyl ligands of 1 in solution undergo exchange on the NMR time scale above -40°C. With the exception of 2, all the complexes dissociate in solution at room temperature, some rapidly so. Only in the case of 3 is an equilibrium with the dissociation products established. The results indicate that CpIr(CO)2 is a weak ligand.Key words: tungsten, osmium, iridium, binuclear.

A new sulfur-bridged iridium(I)-iridium(I) compound and its conversion to a compound containing a metal-metal bond. Crystal structures of Ir2(SPh)2(COD)2 and Ir2Cl2(.mu.2-SPh)2(COD)2

1988 ◽  
Vol 27 (12) ◽  
pp. 2131-2135 ◽  
Author(s):  
F. Albert Cotton ◽  
Pascual Lahuerta ◽  
Julio Latorre ◽  
Mercedes Sanau ◽  
Isabel Solana ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Metal Bond ◽  
Metal Metal
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