New open-framework three-dimensional lanthanide oxalates containing as a template the diprotonated 1,2- or 1,3-diaminopropane
作者:A. Mohanu、C. Brouca-Cabarrecq、J.C. Trombe
DOI:10.1016/j.jssc.2005.09.044
日期:2006.1
atoms, in III, are surrounded by five chelating oxalate groups and that is new. In all the cases within the frame, are observed 8- and 12-membered channels where are localized the guest species, 1,2- or 1,3-diaminopropane cations and free water molecules. The ratio of the guest number (especially the diaminopropane) per 12-membered ring could tune the shape and the size of 12-membered channels: thus, the
在1,2-二氨基丙烷,(C 3 N 2 H 12)[Nd(H 2 O)(C 2 O 4)2 ] 2 ·的存在下,水热合成了三种新的开架式草酸镧系草酸盐的单晶。3H 2 O I和(C 3 N 2 H 12)[Yb(C 2 O 4)2 ] 2 ·5H 2 O II或1,3-二氨基丙烷(C 3 N 2 H 12)2 [La2(C 2 O 4)5 ]·5H 2 O III。它们的结构已通过X射线衍射数据确定:I和III在三斜晶系,空间群P -1中结晶,a = 7.8130(5)Å ,b = 11.8800(6)Å ,c = 12.9940(8) Å ,α= 93.092(5)°α= 93.092(5)° ,β= 93.930(6)°β= 93.930(6)° ,γ= 108.359(5)°γ= 108.359(5)°和a = 11.6650 (9)Å ,b = 11.9240(6)Å ,c =