Diphosphadiselenatetrazocines: preparation and structural characterization of a P V 2N4Se2 ring
作者:Tristram Chivers、Daniel D. Doxsee、James F. Fait
DOI:10.1039/c39890001703
日期:——
The reaction of Ph2P(NSiMe3)[N(SiMe3)2] with RSeCl3(R = Ph, Me, Et) in acetonitrile produces 1,5-Ph4P2N4Se2R2[R = Ph, (1a); Me, (1b); Et, (1c)] and 1,5-Ph4P2N4Se2, (2a) when R = Me or Et; X-ray crystallography shows that (1b) is an eight-membered chair with the two selenium atoms displaced on either side of the P2N4 plane by 1.073(2)Å.
Ph 2 P(NSiMe 3)[N(SiMe 3)2 ]与RSeCl 3(R = Ph,Me,Et)在乙腈中的反应生成1,5-Ph 4 P 2 N 4 Se 2 R 2 [R = Ph,(1a); 我(1b); Et,(1c)]和1,5-Ph 4 P 2 N 4 Se 2,(2a),当R = Me或Et时;X射线晶体学表明(1b)是一个八元椅子,其中两个硒原子在P的两侧移位2 N 4平面乘1.073(2)Å。
Thermal stability and fluxional behaviour of bicyclic sulphur–nitrogen structures of formula En<sub>5</sub>S<sub>3</sub>(E = CR, PR<sub>2</sub>, or SO<sub>2</sub><sup>–</sup>)
作者:René T. Boeré、Richard T. Oakley、Maurice Shevalier
DOI:10.1039/c39870000110
日期:——
Two thermally induced NâS bond cleavage processes are available to EN5S3 heterocycles: (i) an irreversible loss of NSN to form EN3S2(for E = PR2 and SO2â) and (ii) a pseudo-degenerate 1,3-nitrogen shift which exchanges all nitrogen atoms (for E = CPh).
EN5S3 杂环有两种热诱导的 NâS 键裂解过程:(i) NSN 的不可逆损失,形成 EN3S2(对于 E = PR2 和 SO2â);(ii) 1,3-氮的假退化转移,交换所有氮原子(对于 E = CPh)。
Synthese und Kristallstruktur des Aminoimino-Phosphinat–Kupfer(I)-Komplexes [Cu(Me3SiNP(Ph)2NSiMe3)]2
Synthesis and Crystal Structure of the Aminoiminophosphinate Copper(I) Complex [Cu(Me3SiNP(Ph)2NSiMe3)]2 The title compound 1 was prepared by the reaction of Me3SiNP(Ph)2N(SiMe3)2 with copper(I) chloride at 120 °C to give colourless crystals which were characterized by a crystal structure determination. Space group C2/c, Z = 4, lattice dimensions at 193 K: a = 1854.0(3), b = 1256.2(3), c = 1969.9(3) pm