[μ2-(O-Acylhydroxycarbene)]dicobalt Hexacarbonyls by Carbon-to-Oxygen Acyl−Acyl Coupling

Abstract

The acylcobalt tetracarbonyls [RC(O)Co(CO) 4 ] (1) undergo self-acylation in the presence of nBu 4 NI, in toluene at room temp., to yield the dinuclear µ 2 -acylhydroxycarbene-type

Building Light‐Emitting Metal‐Organic Frameworks by Post‐Synthetic Modification

“…The room‐temperature excitation spectra of IRMOF‐3, IRMOF‐3‐CM and IRMOF‐3‐PY (Figure ) display a broad band in the 240–425 nm range ascribed to the π‐π* transitions of the organic matrix . These bands, although with distinct profiles, are also present in Tb/Eu‐IRMOF‐3‐CM and Tb/Eu‐IRMOF‐3‐PY excitation spectra (Figure ) due to the common Ligand‐to‐Metal Charge Transfer (LMCT) process, so‐called, antenna effect .…”

Designing Near‐Infrared and Visible Light Emitters by Postsynthetic Modification of Ln+3–IRMOF‐3

“…The emission spectra (Figure 4) of IRMOF‐3, IRMOF‐3‐EOC and IRMOF‐3‐EAA exhibit broad bands at λ = 450, 465 and 470 nm, respectively, which are assigned to π–π* and/or n–π* transitions of the aromatic ligands 27. For IRMOF‐3‐EAA and IRMOF‐3‐EOC, the emission band is redshifted relative to that of IRMOF‐3 owing to the presence of the pendant β‐diketonate groups.…”

Surface organometallic chemistry: Facile μ2-carbene to μ3-carbyne transformation of organocobalt carbonyls on silica surface

“…All compounds used were of commercial origin, except complexes 1, which were prepared according to the published procedure [5].…”

“…The recently reported new class of cobalt carbonyls, [RC(O)] 2 Co 2 (CO) 6 (1) [5] is formed by self-acylation of acylcobalt carbonyls [6] in apolar solvents. These latter complexes are rather stable either in solution or in solid state.…”