Standard enthalpies of formation of the tetra-µ-acetato-derivatives of dimolybdenum(II), chromium(II)–molybdenum(II), dichromium(II), and dichromium(II) dihydrate, and di-µ-acetato-bis(pentane-2,4-dionato)dimolybdenum(II), and their metal–metal bond enthalpy contributions

1979 ◽  
pp. 1714-1717 ◽  
Author(s):  
Kingsley J. Cavell ◽  
C. David Garner ◽  
Geoffrey Pilcher ◽  
Stephen Parkes
Keyword(s):  
Enthalpies Of Formation ◽  
Metal Bond ◽  
Metal Metal ◽  
Standard Enthalpies Of Formation ◽  
Derivatives Of

Enthalpies of formation of hexakis(isopropoxy)-dimolybdenum and octakis-(isopropoxy)-dimolybdenum and the metal–metal bond enthalpy contributions

1981 ◽  
Vol 77 (7) ◽  
pp. 1585 ◽  
Author(s):  
Kingsley J. Cavell ◽  
Joseph A. Connor ◽  
Geoffrey Pilcher ◽  
Manual A. V. Ribeiro da Silva ◽  
Maria D. M. C. Ribeiro da Silva ◽  
...  
Keyword(s):  
Enthalpies Of Formation ◽  
Metal Bond ◽  
Metal Metal

Standard enthalpies of formation of some phenyl derivatives of cyclopropene

2021 ◽  
pp. 106538
Author(s):  
S.M. Pimenova ◽  
V.A. Lukyanova ◽  
A.I. Druzhinina ◽  
E.A. Miroshnichenko
Keyword(s):  
Enthalpies Of Formation ◽  
Standard Enthalpies Of Formation ◽  
Derivatives Of

scholarly journals Dimeric rhodium(II) complexes containing bridging mandelate ligands

1986 ◽  
Vol 64 (5) ◽  
pp. 936-939 ◽  
Author(s):  
Florian Pruchnik ◽  
Brian R. James ◽  
Pál Kvintovics
Keyword(s):  
Spectral Data ◽  
Catalytic Hydrogenation ◽  
Metal Centre ◽  
Electronic Spectral Data ◽  
Metal Bond ◽  
Metal Metal ◽  
Chloride Ligands ◽  
Dimeric Rhodium ◽  
Derivatives Of

The syntheses and characterization of some dimeric rhodium(II) complexes containing bridging mandelato ligands and a metal–metal bond are described. The compounds isolated are Rh2(O2CR)4(H2O)2, previously described by Shchelokov and coworkers, and derivatives of the type Rh2(O2CR)2(N—N)2X2•nH2O (R = (R)—CH(OH)Ph, N—N = o-phenanthroline or 2,2′-dipyridyl, X = Cl, Br, I, and n is 4, 2, or 1). A mixture of species containing both bridged acetate and mandelate was isolated also. Infrared and electronic spectral data are reported. The chloride ligands of the dimers are displaced readily by alcohols, phosphines, phosphites, and amines; the metal centre also may be reduced by alcohols, P(OEt)3, and nBu2NH. Preliminary studies point to the conditions necessary for the rhodium(II) mandelate and derivatives (phosphine or (N—N) substituted) to activate H2 for catalytic hydrogenation of olefins and ketones, including prochiral substrates.

The Standard Enthalpies of Formation of Energetic 4,5-dinitroimidazole derivatives: A Theoretical Study

2013 ◽  
Vol 774-776 ◽  
pp. 484-487 ◽  
Author(s):  
Xin Fang Su ◽  
Jing Hua Wei ◽  
Hai Ying Wu
Keyword(s):  
Nitro Group ◽  
Theoretical Study ◽  
Enthalpies Of Formation ◽  
Isodesmic Reactions ◽  
Standard Enthalpies Of Formation ◽  
Derivatives Of

The standard enthalpies of formation for 7 derivatives of 4,5-dinitroimidazole in gas at 298 K were determined using isodesmic reactions at B3LYP/6-311G** and B3P86/6-311G** levels. The results indicate that the substitution of nitro group can increase the enthalpies of formation. The more the number of nitro group, the higher the enthalpies of formation. The standard enthalpies of formation of –NO2 and –CH3 substitution compounds on N atom are larger than corresponding ones on C atom.

Sign in / Sign up

Export Citation Format

Share Document