Crystal engineering of a hybrid metal–organic host framework and its single-crystal-to-single-crystal guest exchange using second sphere coordination. Issue 13 (8th March 2016)

• Record Type: Journal Article
• Authors: Li, Lei; Tong, Jian; Guo, Fang; Martí-Rujas, Javier
• Is Part Of: CrystEngComm. Volume 18:Issue 13(2016)
• Page Start: 2284
• Page End: 2288
• Publication Date: 2016-03-08
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c5ce02093j
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : A robust metal–organic adduct displaying 1D channels has been prepared using second sphere interactions through charge-assisted hydrogen bonds. The solid can exchange guest molecules via SCSC reactions and shows guest selectivity depending on the channel size. Abstract : By means of crystal engineering principles, a new second sphere coordination adduct has been synthesized using charge-assisted hydrogen bonds and self-assembling [CdBr6 ] 4− and Br − anions with a V-shaped diprotonated cation. The second sphere adduct is homologous to a copper network, forms a host framework with 1D channels and has good thermal stability (200 °C) upon guest release. The [CdBr6 ] 4− anion shows Jahn–Teller distortion as revealed by X-ray crystallography. Guest exchange via a single-crystal-to-single-crystal manner is reported. The guest behavior is different to that of the homologous Cu adduct due to the pore size effect.