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A Very Short Be–Be Distance but No Bond: Synthesis and Bonding Analysis of Ng–Be 2 O 2 –Ng′ (Ng, Ng′=Ne, Ar, Kr, Xe)
Author(s) -
Zhang Qingnan,
Li WanLu,
Zhao Lili,
Chen Mohua,
Zhou Mingfei,
Li Jun,
Frenking Gernot
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201605994
Subject(s) - triple bond , molecule , bond length , chemistry , beryllium , bond energy , chemical bond , crystallography , bond order , single bond , double bond , noble gas , analytical chemistry (journal) , group (periodic table) , organic chemistry
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 Be 2 O 2 molecule, which is coordinated by two noble gas atoms in Ng−Be 2 O 2 −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.