Cameron, Thomas B.; Hanson, Harold N.; Fuente, German F. de la, Phosphorus, Sulfur and Silicon and the Related Elements, 1993, vol. 78, # 1-4, p. 37 - 46
Cameron, Thomas B.; Hanson, Harold N.; Fuente, German F. de la, Phosphorus, Sulfur and Silicon and the Related Elements, 1993, vol. 78, # 1-4, p. 37 - 46
Synthesis and supramolecular structures of iso- and heteropolymetallates assisted by organoamino phosphonium cations
作者:Arvind K. Gupta、Aswini Kalita、Ramamoorthy Boomishankar
DOI:10.1016/j.ica.2011.01.108
日期:2011.6
O/Na 2 WO 4 ·2H 2 O. The compound 9 , [P(NHCy) 4 ] 3 [AsMo 12 O 40 ], was prepared in a three component reaction involving 1 , Na 2 MoO 4 ·2H 2 O and Na 2 HAsO 4 . Formation of the Keggin clusters in 7 and 8 was achieved by a facile P–N bond cleavage of 3 under the acidic conditions of the reaction. X-ray structure analyses of the title compounds show an interesting range of hydrogen bonded supramolecular
摘要多金属氧酸盐(POM)团簇是构建无机-有机杂化材料的一种有趣的构件。描述了在各种有机氨基phospho阳离子存在下几种异金属和杂多金属阴离子的超分子聚集。[POM盐4-8是通过[P(NHR)4] Cl 1(R =环己基),2(R =异丁基)和3(R =异丙基)}与Na 2反应制备的MoO 4·2H 2 O / Na 2 WO 4·2H 2O。在涉及1,Na 2 MoO 4·的三组分反应中制备了化合物9 [P(NHCy)4] 3 [AsMo 12 O 40]。 2H 2 O和Na 2 HAsO 4。通过在反应的酸性条件下进行3的轻松P-N键裂解,可以在7和8中形成Keggin团簇。
PROCESS FOR PREPARING POLYETHER POLYOLS
申请人:——
公开号:US20020183561A1
公开(公告)日:2002-12-05
The invention is directed to a process for preparing a polyether polyol by the polyaddition of an alkylene oxide on to a starter compound containing active hydrogen atoms under basic catalysis in the presence of phosphonium cations.
[DE] VERFAHREN ZUR HERSTELLUNG VON POLYETHERPOLYOLEN<br/>[EN] METHOD FOR PRODUCING POLYETHER POLYOLS<br/>[FR] PROCEDE DE PRODUCTION DE POLYETHERPOLYOLS
申请人:BAYER AG
公开号:WO2002090420A2
公开(公告)日:2002-11-14
Die Erfindung betrifft ein Verfahren zur Herstellung von Polyetherpolyolen durch Polyaddition von Alkylenoxiden an aktive Wasserstoffatome aufweisende Starterverbindungen unter basischer Katalyse, wobei als Gegenionen am aktiven anionischen Kettenende Phosphoniumionen verwendet werden.
Cameron, Thomas B.; Hanson, Harold N.; Fuente, German F. de la, Phosphorus, Sulfur and Silicon and the Related Elements, 1993, vol. 78, # 1-4, p. 37 - 46
作者:Cameron, Thomas B.、Hanson, Harold N.、Fuente, German F. de la、Huheey, James E.