Structural studies of derivatives of methinyltricobalt enneacarbonyls. I. Crystal structure of CH3CCo3(CO)8PPh3

Brice, Maximilien; Penfold, B. R.; Robinson, Ward T.; Taylor, Susan R.

doi:10.1021/ic50084a039

Cited by 26 publications

(6 citation statements)

References 2 publications

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“…These values are close to the P-C6H5 distances, 1.80 (1) to 1.84 (2)~, reported for CH3CCo(CO)aP(C6Hs) 3 (Brice, Penfold, Robinson & Taylor, 1970) and 1.83 (1) to 1.84 (1) A for (C3Hs)zRu[P(C6Hs)3]2 (Smith, 1972).…”

Section: Coordination Around P Atomssupporting

confidence: 85%

The crystal structure of tetranitratobis(triphenylphosphine oxide)thorium(IV)

Malik¹,

Jeffery²

1973

Acta Crystallogr Sect B

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The crystal structure has been determined from three-dimensional X-ray data collected by photographic methods. The crystals are monoclinic, with unit-cell dimensions a= 14.081 (5), b= 17.590 (5), c= 16.567 (5) A,, fl= 91-02 (10)°; the space group is P21/n and Z= 4. The structure was solved by Patterson and Fourier methods, and refined by the least-squares method on the basis of 3933 indelzendent observations. The final value of conventional R is 0.1009. The thorium atom has a coordination number of ten involving eight oxygen atoms from four bidentate nitrate groups and two oxygen atoms from the Th-O-P linkages as immediate neighbours. The triphenylphosphine groups are linked with thorium through Th-O-P linkages and are related by an approximate twofold axis of symmetry passing through the thorium atom. The phosphorus atoms have irregular tetrahedral coordination with average P-C bond length= 1"80 (3) and P-O= 1"45 (2) ,~. The phenyl rings are planar with average C-C distance = 1.40 (6) A. The Th-O(bridging) distances, 2.37 (2) and 2.33 (2) ,~, are shorter than the Th-O(nitrate) distances, 2.52 (2) to 2.58 (2) ,~. The nitrate groups are planar with average N-O distance= 1.24 (6) A. 2687

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Section: Coordination Around P Atomssupporting

confidence: 85%

The crystal structure of tetranitratobis(triphenylphosphine oxide)thorium(IV)

Malik¹,

Jeffery²

1973

Acta Crystallogr Sect B

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“…The C(1)-Co(1)-P(1) and C(1)-Co(2)-P(2) angles ( Table 2) of 119.65(18)°and 119.5(2)°are relatively large compared to that reported for the monosubstituted derivative (96.0(5)°) [28]. This bending of the Co-P bonds towards the tricobalt plane reflects the intramolecular repulsive non-bonded interaction between the phenyl rings of the phosphane ligands and the capping moiety.…”

Section: Resultsmentioning

confidence: 69%

“…Monosubstituted triphenylphosphane derivatives of Co 3 C clusters are well known [5,14,[26][27][28] but examples of disubstituted derivatives are much rarer [26,29,30]. A disubstituted derivative, 5 (Fig.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterisation of phosphane-substituted Co3C clusters having a pendant allyl side-chain

Black

Morley

Owen

et al. 2004

Journal of Organometallic Chemistry

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“…The structure reported here crystallised in the space group P2 1 /n, a non-standard setting of P2 1 /c, the space group found in the original determination from film data [4]. The gross features of the structure determined here ( Fig.…”

Section: Resultsmentioning

confidence: 78%

“…Substitution of the methylidynetiricobalt-nonacarbonyl family of clusters was first investigated by Robinson and co-workers [3] and the structure of the title compound, determined from film data [4], was the first such derivative to be reported. We obtained a sample of this triphenylphosphine substituted derivative as an unexpected by-product of a reaction of CH 3 CCo 3 (CO) 9 with the potentially tetradentate ligand, C(CH 2 PPh 2 ) 4, [5] and its structure is reinvestigated here.…”

Section: Introductionmentioning

confidence: 99%

μ3-ethylidyne-triphenylphosphine-octacarbonyltricobalt: a re-determination from diffractometer data

2007

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The structure of the title compound was originally reported from film data (Brice et al., Inorg Chem 9:362, 1970) and comprises a triangle of cobalt atoms capped by an ethylidyne substituent to form an approximately tetrahedral cluster unit. The triphenylphosphine ligand lies in an equatorial position with respect to the plane of the cobalt triangle. Two carbonyl groups, one axial the other equatorial, complete the coordination sphere of the cobalt atom bound to phosphorus. The other two cobalt atoms each carry two equatorial and one axial carbonyl ligand. The Co-Co bond cis to the phosphine substituent is significantly longer than the other two Co-Co distances. The crystal structure is stabilised by C-HÁÁÁp interactions and C-HÁÁÁO hydrogen bonds.

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Structural studies of derivatives of methinyltricobalt enneacarbonyls. I. Crystal structure of CH3CCo3(CO)8PPh3

Cited by 26 publications

References 2 publications

The crystal structure of tetranitratobis(triphenylphosphine oxide)thorium(IV)

The crystal structure of tetranitratobis(triphenylphosphine oxide)thorium(IV)

Synthesis and characterisation of phosphane-substituted Co3C clusters having a pendant allyl side-chain

μ3-ethylidyne-triphenylphosphine-octacarbonyltricobalt: a re-determination from diffractometer data

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