Reversal of the stereoselectivity of [4 + 2]-cycloadditions by co-ordination of the heterodienophile to a transition metal fragment

1989 ◽  
pp. 667 ◽  
Author(s):  
Helmut Fischer ◽  
Kornelia Treier ◽  
Ulrike Gerbing ◽  
Josef Hofmann
Keyword(s):  
Transition Metal ◽  
Metal Fragment

Influence of the Transition-Metal Fragment on the Reactivity of Metallaanthracenes

2017 ◽  
Vol 23 (27) ◽  
pp. 6634-6642 ◽  
Author(s):  
Yago García-Rodeja ◽  
Israel Fernández
Keyword(s):  
Transition Metal ◽  
Metal Fragment

Transition Metal Fragment Substituted Silanols of Iron and Tungsten: Synthesis, Structure, and Condensation Reactions

ChemInform ◽  
2005 ◽  
Vol 36 (1) ◽  
Author(s):  
Wolfgang Malisch ◽  
Marco Hofmann ◽  
Matthias Voegler ◽  
Dirk Schumacher ◽  
Andreas Sohns ◽  
...  
Keyword(s):  
Transition Metal ◽  
Condensation Reactions ◽  
And Tungsten ◽  
Metal Fragment

scholarly journals New bonding modes of carbon and heavier group 14 atoms Si–Pb

2014 ◽  
Vol 43 (14) ◽  
pp. 5106-5139 ◽  
Author(s):  
Gernot Frenking ◽  
Ralf Tonner ◽  
Susanne Klein ◽  
Nozomi Takagi ◽  
Takayazu Shimizu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Quantum Chemical ◽  
Donor Ligands ◽  
Chemical Bonds ◽  
Group 14 ◽  
Chemical Methods ◽  
Quantum Chemical Methods ◽  
Donor Acceptor ◽  
Metal Fragment

Molecules which possess chemical bonds where a bare group-14 atom C–Pb is bonded to σ-donor ligands L or to a transition metal fragment [TM] through donor–acceptor interactions are discussed together with an analysis of the bonding situation with modern quantum chemical methods.

Aromaticity of metallabenzenes and related compounds

2015 ◽  
Vol 44 (18) ◽  
pp. 6452-6463 ◽  
Author(s):  
Israel Fernández ◽  
Gernot Frenking ◽  
Gabriel Merino
Keyword(s):  
Transition Metal ◽  
Organometallic Compounds ◽  
Related Compounds ◽  
Metal Fragment

In this review, we focus on the aromaticity of a particular family of organometallic compounds known as metallabenzenes, which are characterized by the formal replacement of a CH group in benzene by an isolobal transition metal fragment.

Does OF2 Form Stable Transition Metal Complexes?. A Density Functional Investigation of the System (OC)5Cr/OF2

1993 ◽  
Vol 48 (10) ◽  
pp. 1348-1354 ◽  
Author(s):  
Heiko Jacobsen ◽  
Heinz-Bernhard Kraatz ◽  
Tom Ziegler ◽  
Philip Michael Boorman
Keyword(s):  
Density Functional Theory ◽  
Transition Metal ◽  
Transition Metal Complexes ◽  
Density Functional ◽  
Activation Barrier ◽  
Local Density ◽  
Density Approximation ◽  
Functional Theory ◽  
Functional Investigation ◽  
Metal Fragment

Density Functional Theory (DFT) within the Local Density Approximation (LDA) was employed to calculate the reaction of OF2 with the metal fragment Cr(CO)5. It is demonstrated that OF2 does not show simple ligand behavior but reacts with the transition metal fragment under oxidative addition, leading to a chromium oxo-complex and transforming two cis CO into fluoroformyl ligands. We calculated this reaction to proceed without any major activation barrier and to be exothermic by about 100 kcal/mol. A possible mechanism for this reaction is discussed

First X-ray Characterization and Theoretical Study of π-Alkyne, Alkynyl-Hydride, and Vinylidene Isomers for the Same Transition Metal Fragment [Cp*Ru(PEt3)2]+

2003 ◽  
Vol 125 (11) ◽  
pp. 3311-3321 ◽  
Author(s):  
Emilio Bustelo ◽  
Jorge J. Carbó ◽  
Agustí Lledós ◽  
Kurt Mereiter ◽  
M. Carmen Puerta ◽  
...  
Keyword(s):  
Transition Metal ◽  
Theoretical Study ◽  
X Ray ◽  
Metal Fragment
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