Tertiary phosphine abstraction from a platinum(II) coordination complex with SeCN-: Crystal and molecular structures of Se=PTA and [Se=PTA-Me]I center dot CH3OH

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Tertiary phosphine abstraction from a platinum(II) coordination complex with SeCN-: Crystal and molecular structures of Se=PTA and [Se=PTA-Me]I center dot CH3OH. / Otto, S; Ionescu, Adriana; Roodt, A.

I: Journal of Organometallic Chemistry, Vol. 690, Nr. 19, 2005, s. 4337-4342.

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T1 - Tertiary phosphine abstraction from a platinum(II) coordination complex with SeCN-: Crystal and molecular structures of Se=PTA and [Se=PTA-Me]I center dot CH3OH

AU - Otto, S

AU - Ionescu, Adriana

AU - Roodt, A

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Inorganic chemistry (ceased) (LUR000010)

PY - 2005

Y1 - 2005

N2 - Reacting [PtCl(PTA)(3)]Cl (PTA = 1,3,5-triaza-7-phosphatricyclo[3.3.1.1(3,7)]decane) with KSeCN in aqueous or MeOH medium results in the abstraction of the PTA ligands to yield Se = PTA. The reaction also proceeds quantitatively by direct reaction of PTA and KSeCN in water or methanol. The methylated PTA ligand, [PTA-Me]I (1-methyl-1-azonia-3,5-diaza-7-phosphatricyclo[3.3. 1.1(3,7)]decane iodide), reacts accordingly with KSeCN, albeit significantly slower. The crystal structure of Se = PTA, 1, and [Se = PTA-Me]I - CH3OH, 2, revealed P = Se bond distances of 2.0991(19) and 2.100(2) angstrom, respectively. The first order phosphorous selenium coupling constants, (1)J(P-Se) (D2O), of 722 and 788 Hz for Se = PTA and [Se = PTA-Me]I, respectively, indicates the latter is significantly less electron rich.

AB - Reacting [PtCl(PTA)(3)]Cl (PTA = 1,3,5-triaza-7-phosphatricyclo[3.3.1.1(3,7)]decane) with KSeCN in aqueous or MeOH medium results in the abstraction of the PTA ligands to yield Se = PTA. The reaction also proceeds quantitatively by direct reaction of PTA and KSeCN in water or methanol. The methylated PTA ligand, [PTA-Me]I (1-methyl-1-azonia-3,5-diaza-7-phosphatricyclo[3.3. 1.1(3,7)]decane iodide), reacts accordingly with KSeCN, albeit significantly slower. The crystal structure of Se = PTA, 1, and [Se = PTA-Me]I - CH3OH, 2, revealed P = Se bond distances of 2.0991(19) and 2.100(2) angstrom, respectively. The first order phosphorous selenium coupling constants, (1)J(P-Se) (D2O), of 722 and 788 Hz for Se = PTA and [Se = PTA-Me]I, respectively, indicates the latter is significantly less electron rich.

KW - crystal structures

KW - PTA

KW - phosphine selenides

U2 - 10.1016/j.jorganchem.2005.07.004

DO - 10.1016/j.jorganchem.2005.07.004

M3 - Article

VL - 690

SP - 4337

EP - 4342

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

SN - 0022-328X

IS - 19

ER -