title: Encapsulation of Halocarbons in a Tetrahedral Anion Cage.
abstract: Caged supramolecular systems are promising hosts for guest inclusion, separation, and stabilization. Well-studied examples are mainly metal-coordination-based or covalent architectures. An anion-coordination-based cage that is capable of encapsulating halocarbon guests is reported for the first time. This A4L4-type (A=anion) tetrahedral cage, [(PO4)4L4](12-), assembled from a C3-symmetric tris(bisurea) ligand (L) and phosphate ion (PO4(3-)), readily accommodates a series of quasi-tetrahedral halocarbons, such as the Freon components CFCl3, CF2Cl2, CHFCl2, and C(CH3)F3, and chlorocarbons CH2Cl2, CHCl3, CCl4, C(CH3)Cl3, C(CH3)2Cl2, and C(CH3)3Cl. The guest encapsulation in the solid state is confirmed by crystal structures, while the host-guest interactions in solution were demonstrated by NMR techniques.
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069 (China).
authors.forename: Dong
authors.initials: D
authors.lastname: Yang
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069 (China).
authors.forename: Jie
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069 (China).
authors.forename: Yanxia
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069 (China).
authors.forename: Yibo
authors.initials: Y
authors.lastname: Lei
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069 (China).
authors.forename: Liping
authors.initials: L
authors.lastname: Cao
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069 (China).
authors.forename: Xiao-Juan
authors.initials: XJ
authors.lastname: Yang
authors.affiliation: Institut für Anorganische Chemie und Strukturchemie, Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf (Germany).
authors.forename: Martin
authors.initials: M
authors.lastname: Davi
authors.affiliation: Institut für Anorganische Chemie und Strukturchemie, Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf (Germany).
authors.forename: Nader de Sousa
authors.initials: Nde S
authors.lastname: Amadeu
authors.affiliation: Institut für Anorganische Chemie und Strukturchemie, Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf (Germany).
authors.forename: Christoph
authors.initials: C
authors.lastname: Janiak
authors.affiliation: Division of Solid State Electronics, Department of Engineering Sciences, Uppsala University, Uppsala 75237 (Sweden).
authors.forename: Zhibin
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069 (China).
authors.forename: Yao-Yu
authors.initials: YY
authors.lastname: Wang
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069 (China). wubiao@nwu.edu.cn.
authors.forename: Biao
authors.initials: B
authors.lastname: Wu
keywords: Freon; anion coordination; anion-based tetrahedral cages; halocarbons; inclusion compounds