The influence of the cation on the conformation of the anion μ-hydridobis[pentacarbonylchromium(0)]: crystal and molecular structure of [(phenH)2Cl][Cr2(CO)10(μ-H)] and [K(phen)2][Cr2(CO)10(μ-H)]

Abstract The crystal and molecular structures of [(phenH)2Cl][Cr2(CO)10(μ-H)] (1) and [K(phen)2][Cr2(CO)10(μ-H)] (2) have been determined by single crystal X-ray diffraction. The availability of the potassium cation for the carbonyl oxygens coordination influences the conformation of the anion in 2 as demonstrated by the comparison with the non-coordinating [(phenH)2Cl] cation in 1 and with literature data.

Potassium μ-Hydrido-Bis[Pentacarbonylchromate(0)] and Potassium μ-Hydrido-Bis[Pentacarbonyltungstate(0)]

Chemistry of the μ-hydridobis(pentacarbonylchromium(0)) species

Abstract Reactions of the potassium and tetrabutylammonium derivatives of Cr 2 H(CO) 10 − , with N-donor bidentate ligands such as 1,10-phenanthroline (phen) and 2,2′-bipyridine (bpy) have been investigated. A coordination compound of general formula K[Cr 2 H(CO) 10 (phen) 3 ] is the most stable product from the reaction of the former with phen, but under certain conditions a 1 2 adduct may also be isolated. The analogous reaction with bpy leads to a single labile adduct, K[Cr 2 H(CO) 10 (bpy) 2 ]. (C 4 H 9 ) 4 N[Cr 2 H(CO) 10 (phen)] is formed by interaction of the latter derivative with phen, but bpy does not give the analogous adduct.

Assembling Process of Charged Nonanuclear Cationic Lanthanide(III)Clusters Assisted by Dichromium Decacarbonyl Hydride

Crystal and molecular structure of the tris(1,10-phenanthroline)potassium salt of μ-hydridobis[pentacarbonylchromium(0)]

Abstract The crystal and molecular structure of [K(phen)3][Cr2(CO)10(μ-H)] has been determined by X-ray diffraction. The compound crystallizes in the space group P 1 with a 11.884(4), b 13.968(4), c 15.612(6) A, α 112.6(1), β 99.7(1) and γ 106.2(1)° and Z = 2. The structure was refined to R = 0.066 and RW = 0.067 for 3692 counter data with I ⩾ 3σ(I). The complex anion [Cr2(CO)10(μ-H)] adopts a bent Cr-H-Cr configuration with the equatorial carbonyl groups of the two independent Cr(CO)5 moieties in an eclipsed configuration. The Cr⋯Cr distance is 3.394(3) A and the two CrH bonds are 1.74(7) and 1.71(7) A. The CrHCr bond angle is 159(3)°. In the dimeric complex cation [K(phen)3]2, located …