Carbon dioxide chemistry. Synthesis, properties, and structural characterization of stable bis(carbon dioxide) adducts of molybdenum

Selective Formic Acid Decomposition for High‐Pressure Hydrogen Generation: A Mechanistic Study

“…The h 2 -coordination mode proposed for the CO 2 moiety in 3 is based on comparisons to the literature data on a related system [24] and on a comparison of the spectroscopic properties of 4 ] and its derivatives. [25] These complexes, characterised by X-ray crystallography, NMR and IR spectroscopy, and previously identified h 2 -CO 2 complexes, [26] indicate a typical According to crystallographic data, [25,26] and DFT calculations, [24] the O-C-O angle in h 2 -CO 2 is decreased from linearity to 128-1418. It should be noted that h 1 -CO 2 -Ru complexes are known [27] and cannot be completely excluded.…”

Synthesis, characterisation and redox behaviour of isocyanide incorporated, chalcogen stabilised mixed-metal clusters

“…Synthesis and spectroscopic characterisation of [(g 5 -C 5 H 5 ) 2 Mo 2 Fe 2 (CO) 6 (CNR)(l 3 -E)(l 3 -E 0 )] (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19), (E, E 0 ¼ S, Se or Te)…”

“…When a benzene solution of [(g 5 -C 5 H 5 ) 2 Mo 2 Fe 2 (CO) 7 (l 3 -E) (l 3 -E 0 )] (1)(2)(3)(4) and isopropyl or tert-butyl isocyanide (RNC) was stirred, the isocyanide-substituted derivatives, [(g 5 -C 5 H 5 ) 2 Mo 2 Fe 2 (CO) 6 (CNR)(l 3 -E)(l 3 -E 0 )] (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) were isolated, in yields of 28-62% according to Scheme 1. For all except one E, E 0 combination, the substitution occurred at room temperature.…”

“…five terminal, one doubly bridging and one semitriply bridging ligand; the isocyanide was found terminally bonded to either of the two Fe atoms, (5)(6)(7)(8)(9)(10)(11)(12) but only one Mo atom, that was not associated with the semi-triply bridging carbonyl group (13)(14)(15)(16)(17)(18)(19), consistent with the preference of i-PrNC and t-BuNC to adopt terminal rather than bridging bonding modes.…”

“…As part of our ongoing interest in developing facile synthetic methods for the preparation of mixed-metal clusters, we isolated clusters of the type [Cp 2 Mo 2 Fe 2 (CO) 7 (l 3 -E)(l 3 -E 0 )], (where E and E 0 are chalcogen atoms) from the reaction of [Fe 3 (CO) 9 (l 3 -E) (l 3 -E 0 )] with [Cp 2 Mo 2 (CO) 6 ] [1][2][3][4]. Some reactivity studies of this cluster type have already been described.…”