6‐iPr2C6H3)NC(R)}2CH; R=Me, tBu) in C6H6 results in the formation of [LRNi(SCPh3)] (1: R=Me; 2: R=tBu) in good yields. Subsequent reduction of 1 and 2 with 2 equiv of KC8 in cold (−25 °C) Et2O in the presence of 2 equiv of 18‐crown‐6 results in the formation of “masked” terminal NiII sulfides, [K(18‐crown‐6)][LRNi(S)] (3: R=Me; 4: R=tBu), also in good yields. An X‐ray crystallographic analysis of these complexes
1个当量KSCPh的的添加3到[L [R(L的NiCl] - [R = (2,6-我
镨2 ç 6 ħ 3)NC(R)} 2 ; R = Me中,CH吨用C卜)6 H 6导致以高收率形成[L R Ni(SCPh 3)](1:R = Me; 2:R = t Bu)。随后还原1和2与2当量KC的8在冷的(-25℃)的Et 2在存在2当量的18-crown-6时,O导致形成“掩蔽的”末端Ni II
硫化物,[K(18-crown-6)] [L R Ni(S)](3:R = Me ; 4:R =t Bu),也具有良好的产率。对这些配合物的X射线晶体学分析表明,它们的NiS键具有部分多重键特征。N中的另外2 O操作的
甲苯溶液4提供[K(
18-冠-6)] [L吨卜
镍(SNNO)],其特点是thiohyponitrite的第一示例(κ 2 - [SNNO ] 2−)
配体。