Selective cleavage of P-N bonds and the conversion of rhodium N-pyrrolyl phosphine complexes into diphosphoxane-bridged dimers

A D Burrows, M F Mahon, M T Palmer, M Varrone

Research output: Contribution to journalArticle

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Abstract

Rhodium(I) complexes trans-[RhCl(CO)(PR2{NC4H3C(O)ME-(2)})2] (R = Ph, NC4H4) react with water to give the diphosphoxane-bridged dimers [Rh2Cl2(CO)(2)(mu-PR2OPR2)(2)] following cleavage of the P-N bonds to the 2-acetyl-N-pyrrolyl groups. The two dimers have been crystallographically characterized and show a number of structural differences, with the PPh2OPPh2 compound possessing semibridging chloride and carbonyl ligands whereas the P(NC4H4)(2)-OP(NC4H4)(2) compound contains only terminal chlorides and carbonyls. No evidence for cleavage of the P-N bonds involving the unfunctionalized N-pyrrolyl groups in trans-[RhCl(CO)(P{NC4H4}(2)-{NC4H3C(O)Me-(2)})(2)] was observed.
Original languageEnglish
Pages (from-to)1695-1697
Number of pages3
JournalInorganic Chemistry
Volume41
Issue number7
DOIs
Publication statusPublished - 2002

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phosphine
Rhodium
Carbon Monoxide
rhodium
phosphines
Dimers
cleavage
chlorides
dimers
Chlorides
Mercaptoethanol
ligands
water
Ligands
Water

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Selective cleavage of P-N bonds and the conversion of rhodium N-pyrrolyl phosphine complexes into diphosphoxane-bridged dimers. / Burrows, A D; Mahon, M F; Palmer, M T; Varrone, M.

In: Inorganic Chemistry, Vol. 41, No. 7, 2002, p. 1695-1697.

Research output: Contribution to journalArticle

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title = "Selective cleavage of P-N bonds and the conversion of rhodium N-pyrrolyl phosphine complexes into diphosphoxane-bridged dimers",
abstract = "Rhodium(I) complexes trans-[RhCl(CO)(PR2{NC4H3C(O)ME-(2)})2] (R = Ph, NC4H4) react with water to give the diphosphoxane-bridged dimers [Rh2Cl2(CO)(2)(mu-PR2OPR2)(2)] following cleavage of the P-N bonds to the 2-acetyl-N-pyrrolyl groups. The two dimers have been crystallographically characterized and show a number of structural differences, with the PPh2OPPh2 compound possessing semibridging chloride and carbonyl ligands whereas the P(NC4H4)(2)-OP(NC4H4)(2) compound contains only terminal chlorides and carbonyls. No evidence for cleavage of the P-N bonds involving the unfunctionalized N-pyrrolyl groups in trans-[RhCl(CO)(P{NC4H4}(2)-{NC4H3C(O)Me-(2)})(2)] was observed.",
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T1 - Selective cleavage of P-N bonds and the conversion of rhodium N-pyrrolyl phosphine complexes into diphosphoxane-bridged dimers

AU - Burrows, A D

AU - Mahon, M F

AU - Palmer, M T

AU - Varrone, M

N1 - ID number: ISI:000174778100003

PY - 2002

Y1 - 2002

N2 - Rhodium(I) complexes trans-[RhCl(CO)(PR2{NC4H3C(O)ME-(2)})2] (R = Ph, NC4H4) react with water to give the diphosphoxane-bridged dimers [Rh2Cl2(CO)(2)(mu-PR2OPR2)(2)] following cleavage of the P-N bonds to the 2-acetyl-N-pyrrolyl groups. The two dimers have been crystallographically characterized and show a number of structural differences, with the PPh2OPPh2 compound possessing semibridging chloride and carbonyl ligands whereas the P(NC4H4)(2)-OP(NC4H4)(2) compound contains only terminal chlorides and carbonyls. No evidence for cleavage of the P-N bonds involving the unfunctionalized N-pyrrolyl groups in trans-[RhCl(CO)(P{NC4H4}(2)-{NC4H3C(O)Me-(2)})(2)] was observed.

AB - Rhodium(I) complexes trans-[RhCl(CO)(PR2{NC4H3C(O)ME-(2)})2] (R = Ph, NC4H4) react with water to give the diphosphoxane-bridged dimers [Rh2Cl2(CO)(2)(mu-PR2OPR2)(2)] following cleavage of the P-N bonds to the 2-acetyl-N-pyrrolyl groups. The two dimers have been crystallographically characterized and show a number of structural differences, with the PPh2OPPh2 compound possessing semibridging chloride and carbonyl ligands whereas the P(NC4H4)(2)-OP(NC4H4)(2) compound contains only terminal chlorides and carbonyls. No evidence for cleavage of the P-N bonds involving the unfunctionalized N-pyrrolyl groups in trans-[RhCl(CO)(P{NC4H4}(2)-{NC4H3C(O)Me-(2)})(2)] was observed.

U2 - 10.1021/ic0108989

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SP - 1695

EP - 1697

JO - Inorganic Chemistry

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IS - 7

ER -