2005
DOI: 10.1016/j.jorganchem.2005.07.061
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Surface organometallic chemistry: Facile μ2-carbene to μ3-carbyne transformation of organocobalt carbonyls on silica surface

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Cited by 6 publications
(6 citation statements)
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“…[9] The molecular structure in the solid state nicely illustrates the m 3 bridging boride motif, with the NHC-stabilized boron atom symmetrically located above a three-membered Co 3 ring, in which each cobalt atom is further substituted by three terminal carbonyl ligands. This scaffold is well-known for the related Group 14 species, that is, m 3 carbyne [10] and m 3 silylidyne complexes. [11] The C1ÀB1 axis is oriented perpendicular to the Co 3 plane with only marginal bending towards the Co1ÀCo2 linkage.…”
Section: Methodsmentioning
confidence: 99%
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“…[9] The molecular structure in the solid state nicely illustrates the m 3 bridging boride motif, with the NHC-stabilized boron atom symmetrically located above a three-membered Co 3 ring, in which each cobalt atom is further substituted by three terminal carbonyl ligands. This scaffold is well-known for the related Group 14 species, that is, m 3 carbyne [10] and m 3 silylidyne complexes. [11] The C1ÀB1 axis is oriented perpendicular to the Co 3 plane with only marginal bending towards the Co1ÀCo2 linkage.…”
Section: Methodsmentioning
confidence: 99%
“…Chemie complexes featuring m 3 carbyne and m 3 silylidyne ligands. [10,11] Density functional theory (DFT) calculations served to evaluate the actual bonding situation in 4 in more detail. [9] The optimization of the geometry at def2-SV(P)/B3LYP level of theory led to a structure containing three bridging carbonyl groups.…”
Section: Methodsmentioning
confidence: 99%
“…The mild conditions on the silica phase contrast with the strongly acidic or thermal treatments normally required to carry out these processes. 67 An intramolecular ortho phosphorylation of [Ir 4 (m-CO) 3 (CO) 7 (PPh 3 ) 2 ] affords the diphosphine ligand in tetrairidium cluster 33. Thermolysis of 33 with C 60 gives the butterfly complex [Ir 4 (CO) 6 (m-CO){m 3 -k 2 -Ph 2 P(o-C 6 H 4 )P(Z 1 -o-C 6 H 4 }(m 3 -Z 2 :Z 2 :Z 2 -C 60 )].…”
Section: Methodsmentioning
confidence: 99%
“…Weiterhin ist jedes dieser Cobaltatome von drei terminalen Carbonylliganden umgeben. Diese Anordnung wird auch in den verwandten Gruppe-14-Spezies aufgefunden, den m 3 -Carbin- [10] und m 3 -Silylidinkomplexen. [11] Die C1-B1-Bindungsachse ist nahezu senkrecht zur Co 3 -Ebene ausgerichtet und weist nur eine geringe Neigung in Richtung der Co1-Co2-Bindung auf.…”
unclassified
“…Der im Vergleich zu einer typischen B-C-Einfachbindung (1.61 ) verhältnismäßig kleine B1-C1-Abstand (1.569 (5) À1 beobachtet, was im Einklang mit den isostrukturellen m 3 -Carbin-und m 3 -Silylidinkomplexen ist. [10,11] Zur Aufklärung der Bindungsverhältnisse in 4 wurden DFT-Rechnungen (Dichtefunktionaltheorie) herangezogen. [9] Die Optimierung der Geometrie auf def2-SV(P)/ B3LYP-Niveau lieferte jedoch eine Struktur mit drei verbrückenden Carbonylliganden, weshalb für die detaillierte Analyse der Bindungssituation die experimentell bestimmte Geometrie 4' mit optimierten Positionen der Wasserstoffatome verwendet wurde.…”
unclassified