X-ray structure of 1,4-bis(diphenylphosphino)butane

Rivera, A. V.; C., D. Gómez; Gil, E. Rodulfo de; Suárez, Trino

doi:10.1107/s0108270187009016

Cited by 4 publications

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“…are very similar to those in the parent disphosphine 1,4-bis(diphenylphosphino)butane, 42 and in the diphenylalkyl phosphine Ph 2 P(CH 2 ) 11 Br. 43 P-C bond lengths are within 0.01 A ˚between all three structures and the sum of the three C-P-C angles are 304.05 • for 1,4bis(diphenylphosphino)butane, 303.78 • for Ph 2 P(CH 2 ) 11 Br and (also) 303.78 • for 4 + PF 6…”

Section: The Ligandssupporting

confidence: 61%

Mono-alkylated bisphosphines as dopants for ESI-MS analysis of catalytic reactions

2010

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Bisphosphines Ph(2)P(CH(2))(n)PPh(2) (n = 1, 2, 4, 6) may be easily monobenzylated to generate cationic phosphine/phosphonium ligands [Ph(2)P(CH(2))(n)PPh(2)CH(2)Ph](+). These ligands may be doped into a catalytic reaction involving neutral complexes with labile phosphine ligands, and replacement of a neutral phosphine with a charged analogue renders the resulting complex amenable to electrospray ionisation mass spectrometry (ESI-MS). Examination of olefin hydrogenation with Wilkinson's catalyst, RhCl(PPh(3))(3), revealed that this approach yielded rapid identification of all off-cycle solution species as well as catalyst poisons. Reactive intermediates could be generated using collision-induced dissociation (CID) of a triphenylphosphine ligand to make three-coordinate RhClP(2) species, and these react with alkenes in the gas phase to form RhClP(2)(alkene). The solution speciation and gas phase behaviour revealed by ESI-MS match closely to what is already known about the system from kinetic and NMR studies.

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Section: The Ligandssupporting

confidence: 61%

Mono-alkylated bisphosphines as dopants for ESI-MS analysis of catalytic reactions

2010

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“…The molecule is sited on a crystallographic center of symmetry which relates one half of the molecule to the other. Related structures have been described by Oliva, CasteUano & De Carvalho (1981) and Rivera, G6mez C, Rodulfo de Gil & Suarez (1988).…”

mentioning

confidence: 99%

Structure of endo-(5R,6R,11R,12S)-5,6,11,12-tetrahydro-4,11,12-trimethoxy-9,13,13-trimethyl-5-(triethylsiloxy)-6,10-methano-8(7H)benzocyclodecenone

Sakai¹,

Kojima²,

Ohashi³

et al. 1991

Acta Crystallogr C

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Alkali Metals

Beswick

Wright

1995

Comprehensive Organometallic Chemistry II

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X-ray structure of 1,4-bis(diphenylphosphino)butane

Cited by 4 publications

References 2 publications

Mono-alkylated bisphosphines as dopants for ESI-MS analysis of catalytic reactions

Mono-alkylated bisphosphines as dopants for ESI-MS analysis of catalytic reactions

Structure of endo-(5R,6R,11R,12S)-5,6,11,12-tetrahydro-4,11,12-trimethoxy-9,13,13-trimethyl-5-(triethylsiloxy)-6,10-methano-8(7H)benzocyclodecenone

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X-ray structure of 1,4-bis(diphenylphosphino)butane

Cited by 4 publications

References 2 publications

Mono-alkylated bisphosphines as dopants for ESI-MS analysis of catalytic reactions

Mono-alkylated bisphosphines as dopants for ESI-MS analysis of catalytic reactions

Structure of endo-(5R*,6R*,11R*,12S*)-5,6,11,12-tetrahydro-4,11,12-trimethoxy-9,13,13-trimethyl-5-(triethylsiloxy)-6,10-methano-8(7H)benzocyclodecenone

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Structure of endo-(5R,6R,11R,12S)-5,6,11,12-tetrahydro-4,11,12-trimethoxy-9,13,13-trimethyl-5-(triethylsiloxy)-6,10-methano-8(7H)benzocyclodecenone