Synthesis and Crystal Structure of a Tetranuclear Silver Complex with Bis（diphenylphosphino） amine-dioxide as a Tridentate Ligand

1 INTRODUCTION The coordination chemistry of the nitrogen-contai- ning diphosphine ligand bis(diphenylphosphino)ami- ne (Ph2PNHPPh2) has recently received much atten- tion because the P atoms can bridge metal centers in μ-bonding mode to form bi- or polynuclear complex- es[1~10]. It has been shown that the acidity of N–H proton would promote functionalization on the ligand backbone[4, 5, 11]. Although a few complexes contain- ing deprotonated tridentate Ph2PNPPh2 have been synthesi…     

一种常温三价铬镀锌黑钝化方法

以磷酸铬为主要成膜物,有机羧酸为络合剂,通过添加作为发黑剂的镍钴盐,和一定量的硝酸根、氟化钠和二氧化硅的水溶胶,制备出了镀锌黑钝化常温发黑液,其中性盐雾试验可分别达到挂镀56 h,滚镀48 h,红锈出现时间为120 h和92 h。     

Syntheses and Characterizations of Luminescent Complexes [(BINAP)Pt(C≡CC_6H_4R-p)_2] (R = H, 1; CH_3, 2) (BINAP = 2,2’-Bis(diphenylphosphino)-1,1’-binaphthyl)

1 INTRODUCTION σ-Alkynyl complexes of platinum have attracted considerable attention over the last few years not only for their structural aspect and reactivity[1~5], but also for their role as building blocks for molecular materials with interesting properties[6~10]. These complexes are usually stabilized by neutral ligands, such as tertiary phosphines PR3, diphosphines, and so on. However, as far as we know, similar platinum acetylide compounds containing the chiral diphos- phine liga…