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Photoelectron Spectroscopy and Theoretical Studies of PCSe , AsCS , AsCSe , and NCSe : Insights into the Electronic Structures of the Whole Family of ECX Anions (E=N, P, As; X=O, S, Se)

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [3];  [4];  [5];  [6];  [1]
  1. Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P. O. Box 999, MS K8-88 Richland WA 99352 USA
  2. Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK, Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
  3. Karlsruhe Institut of Technology (KIT) Institute for Inorganic Chemistry (AOC) Engesserstraße 15, Geb. 30.45 76131 Karlsruhe Germany
  4. Department of Chemistry and the Center for Advanced Scientific Computing and Modeling University of North Texas 1155 Union Circle, #305070 Denton TX 76203-5070 USA
  5. Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
  6. Department of Chemistry Pennsylvania State University University Park PA 16801 USA
Abstract

The newly synthesized phosphorus‐ and arsenic‐containing analogues of the thio‐ and seleno‐cyanate anions, PCSe , AsCS , and AsCSe , as well as the known ion NCSe were investigated in the gas phase by negative‐ion photoelectron spectroscopy (NIPES), velocity‐map imaging (VMI) spectroscopy, and quantum‐chemical computations. The electron affinities (EA), spin–orbit (SO) splittings, and “symmetric”/“asymmetric” stretching frequencies of the neutral radicals ECX . (E=N, P, As; X=S, Se), generated by electron detachment from the corresponding anions, were obtained from the spectra. The calculated EAs, SO splittings, and vibrational frequencies are in excellent agreement with the experimental measurements. These newly obtained values, when combined with those previously determined for the lighter analogues, show interesting trends on descending the pnictogen and chalcogen series. These trends are rationalized based on electronegativity arguments, the electron distributions in the HOMOs, and NBO/NRT analyses.

Sponsoring Organization:
USDOE
OSTI ID:
1560280
Alternate ID(s):
OSTI ID: 1577106
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 42 Vol. 58; ISSN 1433-7851
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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