ChemInform Abstract: Thermal Decarbonylation of Molybdenum(II) Carbonyl-Iodide Complexes. Molecular and Electronic Structures of the Mixed-Valence Trinuclear Clusters Mo3HI7L3 (L: Tetrahydrofuran, Acetonitrile, Benzonitrile) and Molecular Structures of Mo

ChemInform ◽  
1988 ◽  
Vol 19 (22) ◽  
Author(s):  
F. A. COTTON ◽  
R. POLI
Keyword(s):  
Electronic Structures ◽  
Mixed Valence ◽  
Molecular Structures ◽  
Trinuclear Clusters ◽  
Thermal Decarbonylation

On the Structure of Lead(II) Complexes in Aqueous Solutions. I. Trinuclear Clusters

1995 ◽  
Vol 60 (4) ◽  
pp. 527-536 ◽  
Author(s):  
Martin Breza ◽  
Alena Manová
Keyword(s):  
Quantum Chemistry ◽  
Aqueous Solutions ◽  
Electronic Structures ◽  
Mndo Method ◽  
Model Systems ◽  
Trinuclear Clusters ◽  
The Stability ◽  
Semiempirical Mndo

Using semiempirical MNDO method of quantum chemistry the optimal geometries and corresponding electronic structures of [Pb3(OH)n]6-n model systems as well as of their hydrated [Pb3(OH)n(H2O)8-n]6-n analogues (n = 4, 5) are investigated. The most stable trinuclear lead(II) complexes present in aqueous solutions correspond to cyclo-(μ3-OH)(μ2-OH)3Pb32+, Pb(μ-OH)2Pb(μ-OH)2Pb2+, cyclo-(μ3-OH)2(μ2-OH)3Pb3+, Pb(OH)(μ-OH)2Pb(μ-OH)Pb(OH)+ and Pb(OH)(μ-OH)2Pb(μ-OH)2Pb+ systems. The key role of OH bridges (by vanishing direct Pb-Pb bonds) on the stability of individual isomers is discussed.

scholarly journals Water-Soluble Bismuth(III) Polynuclear Tyrosinehydroximate Metallamacrocyclic Complex: Structural Parallels to Lanthanide Metallacrowns

Molecules ◽  
2020 ◽  
Vol 25 (19) ◽  
pp. 4379
Author(s):  
Marina A. Katkova ◽  
Grigory Y. Zhigulin ◽  
Roman V. Rumyantcev ◽  
Galina S. Zabrodina ◽  
Vladimir R. Shayapov ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Structural Parameters ◽  
Molecular Structures ◽  
Water Soluble ◽  
Thermochromic Properties ◽  
Donor Acceptor ◽  
Coordination Ability ◽  
Synthetic Routes ◽  
Complex Structural

Recently there has been a great deal of interest and associated research into aspects of the coordination chemistry of lanthanides and bismuth—elements that show intriguing common features. This work focuses on the synthesis and characterization of a novel bismuth(III) polynuclear metallamacrocyclic complex derived from aminohydroxamic acid, in order to compare the coordination ability of Bi3+ with the similarly sized La3+ ions. A polynuclear tyrosinehydroximate Bi(OH)[15-MCCu(II)Tyrha-5](NO3)2 (1) was obtained according to the synthetic routes previously described for water-soluble Ln(III)-Cu(II) 15-MC-5 metallacrowns. Correlations between structural parameters of Bi(III) and Ln(III) complexes were analyzed. DFT calculations confirmed the similarity between molecular structures of the model bismuth(III) and lanthanum(III) tyrosinehydroximate 15-metallacrowns-5. Analysis of the electronic structures revealed, however, stronger donor-acceptor interactions between the central ion and the metallamacrocycle in the case of the lanthanum analogue. Thermochromic properties of 1 were studied.

ChemInform Abstract: Molecular and Electronic Structures of Mixed-Valence exo,exo-1,12-Dimethyl[1.1]ferrocenophanium Triiodide

1986 ◽  
Vol 17 (17) ◽  
Author(s):  
M. F. MOORE ◽  
S. R. WILSON ◽  
M. J. COHN ◽  
T.-Y. DONG ◽  
U. T. MUELLER-WESTERHOFF ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Mixed Valence

Molecular and electronic structures of mixed-valence exo,exo-1,12-dimethyl[1.1]ferrocenophanium triiodide

1985 ◽  
Vol 24 (26) ◽  
pp. 4559-4565 ◽  
Author(s):  
Michael F. Moore ◽  
Scott R. Wilson ◽  
Michelle J. Cohn ◽  
Teng Yuan Dong ◽  
Ulrich T. Mueller-Westerhoff ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Mixed Valence
Sign in / Sign up

Export Citation Format

Share Document