TY - JOUR
T1 - Synthesis and structure of trans-PtCl2(P(t-Bu)2CH2CHCH2CH2CH2)2, A platinum(II) complex containing the new ligand (DI-t-Butyl)cyclobutylmethylphosphine
AU - Simms, Barbara L.
AU - Ibers, James A.
N1 - Funding Information:
This work was supported by the U.S.
PY - 1987/6/16
Y1 - 1987/6/16
N2 - The synthesis and spectral properties of trans-dichlorobis((di-t-butyl)cyclobutylmethylphosphine)platinum(II), trans-PtCl2(P(t-Bu)2CH2CHCH2CH2CH2)2, and of the new phosphine (di-t-butyl)cyclobutylmethylphosphine, P(t-Bu)2(CH2-CHCH2CH2CH2), are described. The crystal structure of the Pt complex has been determined. The material crystallizes in the monoclinic system, space group C52h-P21/c, with two formula units in a cell of dimensions a 8.521(2), b 12.774(1), c 14.374(2) Å, β 107.71(2)°. A total of 5667 unique reflections were measured on a CAD4 diffractometer at 113 K. The final value of R(F) is 0.028 for those 4223 reflections having F2o > 3σ(F2). The crystal structure consists of the packing of discrete neutral molecules of trans-PtCl2(P(t-Bu)2CH2CHCH2CH2CH2)2. A crystallographic center of symmetry is imposed on each molecule. Important intramolecular distances include PtP, 2.353(1) and PtCl, 2.306(1) Å. The shortest non-bonding distance between the Cl atom and a carbon atom of a t-Bu group is Cl⋯C(4), 3.387(3) Å. No interaction between the Pt atom and the cyclobutane ring is observed. The absence of extreme steric congestion in the complex may explain the lack of such an interaction.
AB - The synthesis and spectral properties of trans-dichlorobis((di-t-butyl)cyclobutylmethylphosphine)platinum(II), trans-PtCl2(P(t-Bu)2CH2CHCH2CH2CH2)2, and of the new phosphine (di-t-butyl)cyclobutylmethylphosphine, P(t-Bu)2(CH2-CHCH2CH2CH2), are described. The crystal structure of the Pt complex has been determined. The material crystallizes in the monoclinic system, space group C52h-P21/c, with two formula units in a cell of dimensions a 8.521(2), b 12.774(1), c 14.374(2) Å, β 107.71(2)°. A total of 5667 unique reflections were measured on a CAD4 diffractometer at 113 K. The final value of R(F) is 0.028 for those 4223 reflections having F2o > 3σ(F2). The crystal structure consists of the packing of discrete neutral molecules of trans-PtCl2(P(t-Bu)2CH2CHCH2CH2CH2)2. A crystallographic center of symmetry is imposed on each molecule. Important intramolecular distances include PtP, 2.353(1) and PtCl, 2.306(1) Å. The shortest non-bonding distance between the Cl atom and a carbon atom of a t-Bu group is Cl⋯C(4), 3.387(3) Å. No interaction between the Pt atom and the cyclobutane ring is observed. The absence of extreme steric congestion in the complex may explain the lack of such an interaction.
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U2 - 10.1016/0022-328X(87)80234-6
DO - 10.1016/0022-328X(87)80234-6
M3 - Article
AN - SCOPUS:12344309198
SN - 0022-328X
VL - 327
SP - 137
EP - 145
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1
ER -