3 for 3a, and 2787.0 for 3b due to respective molecular cation, (M - PF(6))(+). (31)P NMR spectra of 1a-3b display a singlet at delta 82.3, 81.5, 82.9, 81.7, 76.3, and 75.8 ppm with a set of satellites (J(PSe) = 661, 664, 652, 652, 656, and 656 Hz, respectively). The X-ray structure (1a-2b) consists of a discrete cationic cluster in which eight silver ions are linked by six diselenophosphate ligands
六个簇Ag(8)(micro(8)-X)[Se(2)P(OR)(2)](6)(PF(6))(R = Et,X = Cl,1a,X = Br ,(1b; R = Pr,X = Cl,2a,X = Br,2b; R =(i)Pr,X = Cl,3a,X = Br,3b)从[Ag(CH(3 )CN)(4)](PF(6)),NH(4)[Se(2)P(OR)(2)]和Bu(4)NX在CH中的摩尔比为4:3:1 (2)X(2)。正FAB质谱显示1 / a的2573.2、1b的2617.3、2a的2740.9、2b的2786.9、3a的2742.3、3a的2787.0的m / z峰为(M-PF(6))(+ )。1a-3b的(31)P NMR光谱在一组卫星(J(PSe)= 661、664、652、652、652、656和分别为656 Hz)。X射线结构(1a-2b)由离散的阳离子簇组成,其中八个
银离子通过