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Cover Picture: Cycloaddition Reactions of a Chromium–Chromium Quintuple Bond (Chem. Eur. J. 25/2011)
Author(s) -
Noor Awal,
Sobgwi Tamne Emmanuel,
Qayyum Sadaf,
Bauer Tobias,
Kempe Rhett
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201190125
Subject(s) - cycloaddition , chromium , triple bond , chemistry , double bond , medicinal chemistry , photochemistry , catalysis , polymer chemistry , organic chemistry
Addition reactions of alkynes and dienes to a quintuply bonded dichromium complex are reported by R. Kempe et al. in their Communication on page 6900 ff. Both alkynes and dienes undergo cycloaddition reactions in which the formal bond order of the CrCr bond is reduced. CrCr quintuple bonds can undergo similar (cycloaddition) reactions as well‐understood CC double and triple bonds. The picture in the background is the Festspielhaus , Bayreuth (photo by Jana Kempe).