title: Transmetalation of a dodecahedral Na9 aggregate-based polymer: a facile route to water stable Cu(II) coordination networks.
abstract: A variety of network structures have been prepared by transmetalation of a polymer {Na3[Na9(Cbdcp)6(H2O)18]}n (1) (Cbdcp = N-(4-carboxybenzyl)-(3,5-dicarboxyl)pyridinium) containing dodecahedral Na9 aggregate secondary building units with Cu(II) by modulating the temperature, solvent, and pH. These complexes include a large, zwitterionic hexa-cuprometallocycle [Cu6(Cbdcp)6(H2O)18] (2) formed in H2O at room temperature, two three-dimensional polymers [Cu3(Cbdcp)2(OH)2(H2O)2]n (3) and {[Cu3(Cbdcp)2(OH)2]·2H2O}n (4) isolated from H2O and DMF/H2O at 135 °C, and a mononuclear complex [Cu(HCbdcp)2(H2O)3]·H2O (5) from H2O at 100 °C and pH = 6. All the complexes are robust and water stable. The crystal framework of macrocycle 2 is stable up to 100 °C under vacuum and selectively adsorbs CO2.
authors: School of Pharmaceutical Sciences, Southern Medical University , ShaTai Road 1023, Guangzhou 510515, China.
authors: Jin-Xiang
authors: JX
authors: Chen
authors: Ming
authors: M
authors: Chen
authors: Ni-Ni
authors: NN
authors: Ding
authors: Wen-Hua
authors: WH
authors: Chen
authors: Wen-Hua
authors: WH
authors: Zhang
authors: T S Andy
authors: TS
authors: Hor
authors: David J
authors: DJ
authors: Young
mesh_terms: D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D011108:Polymers / Q000737:chemistry*; D012964:Sodium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D011108:Polymers; D014867:Water; D003300:Copper; D012964:Sodium