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Thermodynamic and kinetic hydricities of metal-free hydrides

Journal Article · · Chemical Society Reviews
DOI:https://doi.org/10.1039/C7CS00171A· OSTI ID:1467650
 [1];  [2];  [3];  [1]
  1. Univ. of Illinois at Chicago, Chicago, IL (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Univ. of Colorado, Boulder, CO (United States)
  3. Univ. of Colorado, Boulder, CO (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
+ Show Author Affiliations
Metal-free hydrides are of increasing research interest due to their roles in recent scientific advances in catalysis, such as hydrogen activation with frustrated Lewis pairs and electrocatalytic CO2 reduction with pyridinium and other aromatic cations. The structural design of hydrides for specific applications necessitates the correct description of their thermodynamic and kinetic prowess using reliable parameters – thermodynamic hydricity (ΔGH–) and nucleophilicity (N). This review summarizes reported experimental and calculated hydricity values for more than 200 metal-free hydride donors, including carbon-, boron-, nitrogen- and silicon-based hydrides. We describe different experimental and computational methods used to obtain these thermodynamic and kinetic parameters. Furthermore, tabulated data on metal-free hydrides are discussed in terms of structure–property relationships, relevance to catalysis and contemporary limitations for replacing transition-metal hydride catalysts. Lastly, several selected applications of metal-free hydrides in catalysis are described, including photosynthetic CO2 reduction and hydrogen activation with frustrated Lewis pairs.
Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); Ohio Supercomputer Center (OSC); Petroleum Research Fund (PRF); USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1467650
Alternate ID(s):
OSTI ID: 1429978
Journal Information:
Chemical Society Reviews, Journal Name: Chemical Society Reviews Journal Issue: 8 Vol. 47; ISSN 0306-0012; ISSN CSRVBR
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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