Structure of the mixed-valence compound dipotassium tribromo(pyridine)platinate(II) pentabromo(pyridine)platinate(IV) dihydrate

1982 ◽  
Vol 38 (7) ◽  
pp. 1901-1906 ◽  
Author(s):  
A. L. Beauchamp ◽  
D. Layek ◽  
T. Theophanides
Keyword(s):  
Mixed Valence ◽  
Mixed Valence Compound

Comment on “Pressure-induced structural and valence transition in AgO” by C. Hou, J. Botana, X. Zhang, X. Wang and M. Miao, Phys. Chem. Chem. Phys., 2016, 18, 15322

2016 ◽  
Vol 18 (46) ◽  
pp. 31973-31974 ◽  
Author(s):  
Mariana Derzsi ◽  
Wojciech Grochala
Keyword(s):  
Electronic Structure ◽  
Recent Article ◽  
Theoretical Study ◽  
Mixed Valence ◽  
Chem Phys ◽  
External Pressure ◽  
Valence Transition ◽  
Mixed Valence Compound ◽  
Phys Chem Chem Phys

The recent article by Hou et al. has focused on a theoretical study of mixed valence compound AgO in order to elucidate the nature of the electronic structure of this system as a function of external pressure.

Singlet carbenes as mimics for transition metals: synthesis of an air stable organic mixed valence compound [M2(C2)+˙; M = cyclic(alkyl)(amino)carbene]

2014 ◽  
Vol 1 (4) ◽  
pp. 351-354 ◽  
Author(s):  
Liqun Jin ◽  
Mohand Melaimi ◽  
Liu Liu ◽  
Guy Bertrand
Keyword(s):  
Transition Metals ◽  
Radical Cation ◽  
Mixed Valence ◽  
Ethynyl Radical ◽  
Mixed Valence Compound ◽  
Singlet Carbenes

A bis-carbene-stabilized ethynyl radical cation, a purely organic mixed valence compound, is indefinitely air stable.

Crystal structure and properties of a new mixed-valence compound LiMn2TeO6 and the survey of the LiMM′XO6 family (X = Sb or Te)

2011 ◽  
Vol 13 (11) ◽  
pp. 1931-1937 ◽  
Author(s):  
A.A. Pospelov ◽  
V.B. Nalbandyan ◽  
E.I. Serikova ◽  
B.S. Medvedev ◽  
M.A. Evstigneeva ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Mixed Valence ◽  
Structure And Properties ◽  
Mixed Valence Compound

Effect of pressure on resistivity and Mössbauer spectra of the mixed valence compound Sn2S3

1979 ◽  
Vol 70 (11) ◽  
pp. 4837-4842 ◽  
Author(s):  
G. Amthauer ◽  
J. Fenner ◽  
S. Hafner ◽  
W. B. Holzapfel ◽  
R. Keller
Keyword(s):  
Mössbauer Spectra ◽  
Mixed Valence ◽  
Effect Of Pressure ◽  
Mossbauer Spectra ◽  
Mixed Valence Compound

Die neuen Oxobismutate(III) Cs6Bi4O9, K9Bi5O13 und A2Bi4O7 (A = Rb, Cs) / The New Oxobismutates(III) Cs6Bi4O9, K9Bi5O13 and A2Bi4O7 (A = Rb, Cs)

2002 ◽  
Vol 57 (10) ◽  
pp. 1090-1100
Author(s):  
Franziska Emmerling ◽  
Caroline Röhr
Keyword(s):  
Single Crystal ◽  
Crystal Structures ◽  
Alkali Metals ◽  
Mixed Valence ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Trigonal Bipyramidal ◽  
Mixed Valence Compound

AbstractThe title compounds were synthesized at a temperature of 700 °C via oxidation of elemental Bi with the hyperoxides AO2 or via reaction of the elemental alkali metals A with Bi2O3. Their crystal structures have been determined by single crystal x-ray diffraction. They are dominated by two possible surroundings of Bi by O, the ψ-trigonal-bipyramidal three (B) and the ψ-tetrahedral four (T) coordination. Cs6Bi4O9 (triclinic, spacegroup P1̄, a = 813.82(12), b = 991.60(14), c = 1213.83(18) pm, α = 103.658(2), β = 93.694(3), γ = 91.662(3)°, Z = 2) contains centrosymmetric chain segmentes [Bi8O18]12- with six three- (T) and two four-coordinated (B) Bi(III) centers. K9Bi5O13 (monoclinic, spacegroup P21/c, a = 1510.98(14), b = 567.59(5), c = 2685.6(2) pm, β = 111.190(2)°, Z = 4) is a mixed valence compound with isolated [BivO4]3- tetrahedra and chains [BiIII4O9]6- of two T and two B coordinated Bi. In the compounds A2Bi4O7 (A = Rb/Cs: monoclinic, C2/c, a = 2037.0(3) / 2130.6(12), b = 1285.5(2) / 1301.9(7), c = 1566.6(2) / 1605.6(9) pm, β = 94.783(3) / 95.725(9)°, Z = 8) ribbons [Bi4O6O2/2]2- are formed, which are condensed to form a three-dimensional framework.

Pt(NH3)2(SCN)2J: Ein Platinkomplex mit gemischter Wertigkeit / Pt(NH3)2(SCN)2I: A Mixed Valence Platinum Compound

1976 ◽  
Vol 31 (2) ◽  
pp. 194-197 ◽  
Author(s):  
K. D. Buse ◽  
H. J. Keller ◽  
D. Nöthe
Keyword(s):  
Solid State ◽  
Metal Complex ◽  
Linear Chain ◽  
Mixed Valence ◽  
Molecular Iodine ◽  
Platinum Compound ◽  
Physical Evidence ◽  
Mixed Valence Compound

Pt(NH3)2(SCN)2 dissolved in liquid SO2 reacts with molecular iodine to yield a green lustrous solid of stoichiometry Pt(NH3)2(SCN)2I. The compound is diamagnetic in the solid state and in solution and has to be taken for a platinum(II, IV) mixed valence compound, therefore. Chemical and physical evidence so far suggest a linear chain solid with either iodide-bridged metal complex chains or metal complex stacks with parallel triiodide chains.

Heat capacity and phase transitions of the mixed-valence compound [Fe3O(O2CCH3)6(py)3](py)

1986 ◽  
Vol 108 (4) ◽  
pp. 702-708 ◽  
Author(s):  
Michio. Sorai ◽  
Kazutoshi. Kaji ◽  
David N. Hendrickson ◽  
Seung M. Oh
Keyword(s):  
Heat Capacity ◽  
Phase Transitions ◽  
Mixed Valence ◽  
Mixed Valence Compound

FIRST-PRINCIPLE THEORETICAL STUDY ON THE CALCIUM FERRITE-TYPE LiMn2O4

2010 ◽  
Vol 03 (02) ◽  
pp. 93-96 ◽  
Author(s):  
MEILING LI ◽  
YUE ZHANG ◽  
LIN LI
Keyword(s):  
Magnetic Moments ◽  
Mixed Valence ◽  
Calcium Ferrite ◽  
Full Potential ◽  
Augmented Plane Wave ◽  
Plane Wave Method ◽  
Augmented Plane Wave Method ◽  
Structural And Electronic Properties ◽  
Mixed Valence Compound ◽  
Linearized Augmented Plane Wave

The structural and electronic properties of the calcium ferrite-type LiMn 2 O 4 were studied using the full-potential linearized augmented plane wave method. The results showed that LiMn 2 O 4 was an antiferromagnetic semiconductor from GGA+U calculations, similar to the experimental report of Li 0.92 Mn 2 O 4. The spin magnetic moments and density of states of Mn atoms showed that LiMn 2 O 4 was a mixed-valence compound with Mn 3+ and Mn 4+ cations randomly distributed amongst the octahedral sites.

scholarly journals Tandem catalysis of ring-closing metathesis/atom transfer radical reactions with homobimetallic ruthenium–arene complexes

2010 ◽  
Vol 6 ◽  
pp. 1167-1173 ◽  
Author(s):  
Yannick Borguet ◽  
Xavier Sauvage ◽  
Guillermo Zaragoza ◽  
Albert Demonceau ◽  
Lionel Delaude
Keyword(s):  
Mixed Valence ◽  
Active Species ◽  
Radical Reactions ◽  
Catalyst Precursor ◽  
Atom Transfer ◽  
Tandem Catalysis ◽  
Ring Closing Metathesis ◽  
Experimental Conditions ◽  
Mixed Valence Compound ◽  
The Individual

The tandem catalysis of ring-closing metathesis/atom transfer radical reactions was investigated with the homobimetallic ruthenium–indenylidene complex [(p-cymene)Ru(μ-Cl)3RuCl(3-phenyl-1-indenylidene)(PCy3)] (1) to generate active species in situ. The two catalytic processes were first carried out independently in a case study before the whole sequence was optimized and applied to the synthesis of several polyhalogenated bicyclic γ-lactams and lactones from α,ω-diene substrates bearing trihaloacetamide or trichloroacetate functionalities. The individual steps were carefully monitored by 1H and 31P NMR spectroscopies in order to understand the intimate details of the catalytic cycles. Polyhalogenated substrates and the ethylene released upon metathesis induced the clean transformation of catalyst precursor 1 into the Ru(II)–Ru(III) mixed-valence compound [(p-cymene)Ru(μ-Cl)3RuCl2(PCy3)], which was found to be an efficient promoter for atom transfer radical reactions under the adopted experimental conditions.

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