The ytterbium(II) benzamidinates [RC6H4C(NSiMe3)2]2Yb(THF)2 (1a: R H, 1b: R OMe) react with diaryl diselenides and ditellurides to give ytterbium(III) complexes of the type [RC6H4C(NSiMe3)2]2Yb(SeR′)(THF) (2: R H, R′ Ph; 3: R H, R′ Mes) and [RC6H4C-(NSiMe3)2]2Yb(TeR′)(THF) (4: R OMe, R′ Mes), respectively. The molecular structure of [PhC(NSiMe3)2]2Yb(SeMes)(THF) (3) has been determined
nz (II)苯甲din酸盐[RC 6 H 4 C(NSiMe 3)2 ] 2 Yb(THF)2(1a: RH,1b: ROMe)与二芳基二
硒化物和二
碲化物反应生成give(III)络合物类型[RC 6 H 4 C(NSiMe 3)2 ] 2 Yb(SeR')(THF)(2: RH,R'; Ph; 3: RH,R'Mes)和[RC 6 H 4 C-(NSiMe 3)2 ] 2 Yb(TeR')(THF)(4:ROMe,R'Mes)。[PhC(NSiMe 3)2 ] 2 Yb(SeMes)(THF)(3)的分子结构已通过X射线晶体学测定(三斜晶系,空间群,a 1064.9(3),b 1377.1(3),c下午3690(3),α68.61(2),β89.46(3),γ72.82(1)°,Z = 4,10531观察到的反射,R = 0.045)。此外,还讨论了2和3的强温度依赖性1