title: A Very Short Be-Be Distance but No Bond: Synthesis and Bonding Analysis of Ng-Be2O2-Ng' (Ng, Ng'=Ne, Ar, Kr, Xe).
abstract: Short interatomic distances below standard values for a single bond are usually identified with double or triple bonds. The synthesis and spectroscopic characterization of a molecule is reported where the distance between two beryllium atoms is shorter than a standard double bond but there is no bond. The cyclic diberyllium dioxide Be2O2molecule, which is coordinated by two noble gas atoms in Ng-Be2O2-Ng' (Ng, Ng'=Ne, Ar, Kr, Xe) was isolated and spectroscopically identified in low-temperature matrices. The complexes possess very short Be-Be distances, but the analysis of the electronic structure reveals that there is no chemical bond.
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Qingnan
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Wan-Lu
authors.initials: WL
authors.lastname: Li
authors.affiliation: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, 211816, P. R. China.
authors.forename: Lili
authors.initials: L
authors.lastname: Zhao
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Mohua
authors.initials: M
authors.lastname: Chen
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Mingfei
authors.initials: M
authors.lastname: Zhou
authors.affiliation: Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Li
authors.affiliation: Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35043, Marburg, Germany.|Donostia International Physics Center (DIPC), P.K. 1072, 20080, Donostia, Spain.
authors.forename: Gernot
authors.initials: G
authors.lastname: Frenking
keywords: bonding analysis; matrix isolation; noble gas complexes; quantum chemical calculations