atoms. Oxidative addition of methyl iodide or iodine to [PtC6H4(PPh2)-2}2] gives initially platinum(IV) complexes [PtI(R)C6H4(PPh2)-2}2] (R = Me or I) in which the added groups are mutually trans; in the final, stable products the added groups and the phosphorus atoms are, separately, mutually cis. Oxidative addition of bromine to [PtC6H4(PPh2)-2}2] gives initially trans-[PtBr2C6H4(PPh2)-2}2] but
用2-LiC 6 H 4 PPh 2处理[
PTCl 2(
SEt 2)2 ]或[RhCl 3(
SEt 2)3 ],得到四元环螯合物芳基
铂(II)或芳基
铑(III)络合物[
PT C 6 H 4(P Ph 2)-2} 2 ]和[ Rh C 6 H 4(P Ph 2)-2} 3 ],而相应的[IrCl 3(
SEt 2)3 ]给出了Ir-C 6 H 4(PPh 2)键断裂产生的IrCl C 6 H 4(P Ph 2)-2} 2(PPh 3)] 。[
PT C 6 H 4(P Ph 2)-2} 2 ]的
化学性质主要是由
PT–P键的不稳定性所决定的,这些键依次被
配体在室温下,得到含有单齿Ç络合物6 ħ 4(PPH 2),即[
铂C 6 H ^ 4(P博士2)-2} η 1 -C 6 ħ 4(PPH 2)-2}(L )] [L = PPH 3,P(OPH)3,P(OME)3或卜吨] NC和[
PT