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Showing 1 to 12 of 112 entries
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Superconductivity in transition metals.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

Slocombe DR, Kuznetsov VL, Grochala W, Williams RJ, Edwards PP.
PMID: 25666075
Philos Trans A Math Phys Eng Sci. 2015 Mar 13;373(2037). doi: 10.1098/rsta.2014.0476.

A qualitative account of the occurrence and magnitude of superconductivity in the transition metals is presented, with a primary emphasis on elements of the first row. Correlations of the important parameters of the Bardeen-Cooper-Schrieffer theory of superconductivity are highlighted...

Bioorthogonal catalysis: Rise of the nanobots.

Nature chemistry

Unciti-Broceta A.
PMID: 26100798
Nat Chem. 2015 Jul;7(7):538-9. doi: 10.1038/nchem.2291.

No abstract available.

Highly Polar Metal-Metal Bonds in "Early-Late" Heterodimetallic Complexes.

Angewandte Chemie (International ed. in English)

Gade LH.
PMID: 10934392
Angew Chem Int Ed Engl. 2000 Aug 04;39(15):2658-2678. doi: 10.1002/1521-3773(20000804)39:15<2658::aid-anie2658>3.0.co;2-c.

Metal-metal bond polarity in its extreme form involving transition elements is found in di- or polynuclear complexes in which molecular fragments containing metal atoms from the two ends of the d block in the periodic table are combined. This...

EELS analysis of cation valence states and oxygen vacancies in magnetic oxides.

Micron (Oxford, England : 1993)

Wang ZL, Yin JS, Jiang YD.
PMID: 10831303
Micron. 2000 Oct;31(5):571-80. doi: 10.1016/s0968-4328(99)00139-0.

Transition metal oxides are a class of materials that are vitally important for developing new materials with functionality and smartness. The unique properties of these materials are related to the presence of elements with mixed valences of transition elements....

On the performance of two-component energy-consistent pseudopotentials in atomic Fock-space coupled cluster calculations.

The Journal of chemical physics

Figgen D, Wedig A, Stoll H, Dolg M, Eliav E, Kaldor U.
PMID: 18205442
J Chem Phys. 2008 Jan 14;128(2):024106. doi: 10.1063/1.2823053.

The four-component atomic intermediate-Hamiltonian Fock-space coupled cluster (IHFSCC) code of Landau et al. [J. Chem. Phys. 115, 6862 (2001)] has been adapted to two-component calculations with relativistic pseudopotentials of the energy-consistent variety. Recently adjusted energy-consistent pseudopotentials for group 11...

High-temperature molecular magnets based on cyanovanadate building blocks: spontaneous magnetization at 230 k.

Science (New York, N.Y.)

Entley WR, Girolami GS.
PMID: 17746547
Science. 1995 Apr 21;268(5209):397-400. doi: 10.1126/science.268.5209.397.

The molecular-based magnetic materials Cs(2)Mn(||)[V(||)(CN)(6)] (1) and (Et(4)N)(0.5)Mn(l.25)- [V(CN)(5)].2H(2)O (2) (where Et is ethyl) were prepared by the addition of manganese(II) triflate to aqueous solutions of the hexacyanovanadate(II) ion at 0 degrees C. Whereas 1 crystallizes in a face-centered...

Interaction of the early 3d transition metals Sc, Ti, V, and Cr with N2: an ab initio study.

The Journal of chemical physics

Kardahakis S, Koukounas C, Mavridis A.
PMID: 16542078
J Chem Phys. 2006 Mar 14;124(10):104306. doi: 10.1063/1.2174000.

The interaction of the early 3d transition elements M=Sc, Ti, V, and Cr with N2(X 1Sigmag+) has been studied by coupled-cluster and multiconfigurational techniques in conjunction with quantitative basis sets. We investigated both triatomic (MN2) and tetratomic (M2N2) species...

Adsorption of chloro-complexes of the first row transition elements by Dowex A-1.

Talanta

Birney DG, Blake WE, Meldrum PR, Peach ME.
PMID: 18960332
Talanta. 1968 Jun;15(6):557-9. doi: 10.1016/0039-9140(68)80130-4.

A study has been made of the adsorption of chlorocomplexes of the first row transition metals by the chelating resin Dowex A-1, and possible mechanisms for adsorption have been reviewed. Relative adsorption follows the series Zn(II) > Co(II) =...

Metal oxide chemistry in solution: the early transition metal polyoxoanions.

Science (New York, N.Y.)

Day VW, Klemperer WG.
PMID: 17736064
Science. 1985 May 03;228(4699):533-41. doi: 10.1126/science.228.4699.533.

Many of the early transition elements form large polynuclear metal-oxygen anions containing up to 200 atoms or more. Although these polyoxoanions have been investigated for more than a century, detailed studies of structure and reactivity were not possible until...

Frontiers in electronic structure theory.

The Journal of chemical physics

Sherrill CD.
PMID: 20331271
J Chem Phys. 2010 Mar 21;132(11):110902. doi: 10.1063/1.3369628.

Current and emerging research areas in electronic structure theory promise to greatly extend the scope and quality of quantum chemical computations. Two particularly challenging problems are the accurate description of electronic near-degeneracies (as occur in bond-breaking reactions, first-row transition...

High temperature magnetic ordering in the 4d perovskite SrTcO3.

Physical review letters

Rodriguez EE, Poineau F, Llobet A, Kennedy BJ, Avdeev M, Thorogood GJ, Carter ML, Seshadri R, Singh DJ, Cheetham AK.
PMID: 21405490
Phys Rev Lett. 2011 Feb 11;106(6):067201. doi: 10.1103/PhysRevLett.106.067201. Epub 2011 Feb 07.

We present evidence for possibly the highest magnetic ordering temperature in any compound without 3d transition elements. Neutron powder diffraction measurements, at both time-of-flight and constant wavelength sources, were performed on two independently prepared SrTcO3 powders. SrTcO3 adopts a...

Luminescent heteropolynuclear complexes of 3,5-dimethylpyrazolate [Pt2Au2M2(Me2pz)8] (M = Ag, Cu) showing the synergistic effect of three transition elements in the excited state.

Chemistry (Weinheim an der Bergstrasse, Germany)

Umakoshi K, Saito K, Arikawa Y, Onishi M, Ishizaka S, Kitamura N, Nakao Y, Sakaki S.
PMID: 19283817
Chemistry. 2009;15(17):4238-42. doi: 10.1002/chem.200900290.

Swap the coins! The Pt(2)Au(2), Pt(2)Au(2)Cu(2), and Pt(2)Au(2)Ag(2) complexes of 3,5-dimethylpyrazolate exhibit yellow-green, orange, and sky-blue luminescence, respectively (see figure). The emission energies of Pt(2)Au(2)M(2) complexes can be controlled by the change of the third coinage metal ions M....

Showing 1 to 12 of 112 entries