نتایج جستجو برای: polynuclear aluminum

تعداد نتایج: 52142  

Journal: :Dalton transactions 2016
A Ben Khélifa M Salah Belkhiria G Huang S Freslon O Guillou K Bernot

Correction for 'Single-molecule magnet behaviour in polynuclear assembly of trivalent cerium ions with polyoxomolybdates' by A. Ben Khélifa, et al., Dalton Trans., 2015, 44, 16458-16464.

Journal: :Dalton transactions 2011
Hui-Sheng Wang Zai-Chao Zhang Xiao-Jiao Song Jing-Wei Zhang Hong-Bo Zhou Jun Wang You Song Xiao-Zeng You

Two polynuclear mixed-valence manganese clusters, [Mn(13)] and [Mn(16)], containing mixed chelating ligands were synthesized and structurally characterized. The alternating current (AC) susceptibilities of both complexes reveal nonzero frequency-dependent out-of-phase (χ(M)'') signals.

Journal: :Journal of Synthetic Organic Chemistry, Japan 1956

2014
Alexey N. Gusev Ivan Nemec Radovan Herchel Eziz Bayjyyev Galyna A. Nyshchimenko Grigory G. Alexandrov Igor L. Eremenko Zdeněk Trávníček Miki Hasegawa Wolfgang Linert

Nine new mononuclear and polynuclear Cu(II) complexes [Cu(H2L )Cl]Cl·3H2O (1), [Cu(H2L )Cl]Cl·H2O (2), [Cu(H2L )Cl]Cl·2.5H2O (3), [Cu3(μ -L)2(H2O)3](ClO4)2·H2O (4), [Cu4(μ-HL )4](ClO4)8·CH3OH·5H2O (5), [Cu2(HL )2](ClO4)2·2H2O (6a), [Cu2(μ-HL )2](ClO4)2·H2O (6b), [Cu2(μ-HL )(L)Cu(teta)](ClO4)3·2H2O (7) and [Cu2(H2L )2(ox)](ClO4)2·2H2O·2MeOH (8) containing [5-(2-pyridine-2-yl)-1,2,4-triazole-3-yl...

2007
R. Norman Jones

The laboratory preparation of 20-methylcholanthrene from desoxycholic acid by Wieland and Dane (20) in 1933 encouraged speculation concerning the role that polynuclear aromatic hydrocarbons might play as endogenous carcinogenic agents, but in the succeeding decade progress in the characterization of endogenous chemical carcinogens has been extremely slow. Several investigators have attempted to...

2015
Wen Yu Lukas Guggolz Olaf Fuhr Dieter Fenske Stefanie Dehnen

The chemistry of polynuclear gold(I) complexes has attracted increasing attention in the past few decades. With a closedshell electronic configuration of d, gold(I) ions adopt a linear two-coordinate coordination geometry and tend to form weak metal⋯metal interactions, which were termed “aurophilic interactions” by Schmidbaur. They are found in a huge number of polynuclear aggregates that posse...

2015
Wen Yu Lukas Guggolz Olaf Fuhr Dieter Fenske Stefanie Dehnen

The chemistry of polynuclear gold(I) complexes has attracted increasing attention in the past few decades. With a closedshell electronic configuration of d, gold(I) ions adopt a linear two-coordinate coordination geometry and tend to form weak metal⋯metal interactions, which were termed “aurophilic interactions” by Schmidbaur. They are found in a huge number of polynuclear aggregates that posse...

Journal: :Transactions of Tianjin University 2022

Abstract Photocatalytic water splitting and carbon dioxide photoreduction are considered effective strategies for alleviating the energy crisis environmental pollution. Polynuclear metal-oxo clusters possess excellent electron storage/release ability unique catalytic properties via intermetallic synergy, which enables them with great potential in environmentally friendly photosynthesis. Importa...

Journal: :Chemical communications 2009
Jie Liu Alexander Wei

The formation of cobalt nanoclusters from polynuclear Co-alkyne species can be directed by multivalent calixarene ligands; thermochemical studies of Con-calixarenes reveal the influence of multivalency in prenucleation and postnuclear growth processes.

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