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Title: Ligand-Based Control of Single-Site vs. Multi-Site Reactivity by a Trichromium Cluster

Journal Article · · Angewandte Chemie (International Edition)
ORCiD logo [1];  [2];  [3];  [2];  [4];  [4]; ORCiD logo [2]
  1. Columbia Univ., New York, NY (United States)
  2. Harvard Univ., Cambridge, MA (United States)
  3. Univ. of California, Berkeley, CA (United States)
  4. Univ. of Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

The trichromium cluster (tbsL)Cr3(thf) ([tbsL]6–=[1,3,5-C6H9(NC6H4-o-NSitBuMe2)3]6–) exhibits steric- and solvation-controlled reactivity with organic azides to form three distinct products: reaction of (tbsL)Cr3(thf) with benzyl azide forms a symmetrized bridging imido complex (tbsL)Cr3(μ3-NBn); reaction with mesityl azide in benzene affords a terminally bound imido complex (tbsL)Cr3(μ1-NMes); whereas the reaction with mesityl azide in THF leads to terminal N-atom excision from the azide to yield the nitride complex (tbsL)Cr3(μ3-N). We report the reactivity of this complex demonstrates the ability of the cluster-templating ligand to produce a well-defined polynuclear transition metal cluster that can access distinct single-site and cooperative reactivity controlled by either substrate steric demands or reaction media.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Institutes of Health (NIH); USDOE Office of Science (SC); National Science Foundation (NSF)
Grant/Contract Number:
GM 098395; SC0008313; NSF/CHE-1834750; AC02-06CH11357
OSTI ID:
1524646
Alternate ID(s):
OSTI ID: 1503715
Journal Information:
Angewandte Chemie (International Edition), Vol. 58, Issue 17; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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