Fine Substituent Effects in Sandwich Complexes: A Threshold Ionization Study of Monosubstituted Chromium Bisarene Compounds

2016 ◽  
Vol 22 (14) ◽  
pp. 4690-4694 ◽  
Author(s):  
Sergey Yu. Ketkov ◽  
Gennady V. Markin ◽  
Sheng Y. Tzeng ◽  
Wen B. Tzeng
Keyword(s):  
Substituent Effects ◽  
Sandwich Complexes ◽  
Threshold Ionization

Substituent effects on the electronic structures of sandwich compounds: new understandings provided by DFT-assisted laser ionization spectroscopy of bisarene complexes

2020 ◽  
Vol 49 (3) ◽  
pp. 569-577 ◽  
Author(s):  
Sergey Ketkov
Keyword(s):  
High Resolution ◽  
Transition Metal ◽  
Electronic Structures ◽  
Substituent Effects ◽  
Laser Ionization ◽  
Sandwich Complexes ◽  
Threshold Ionization ◽  
Sandwich Compounds

High-resolution threshold ionization spectroscopy reveals new aspects of substituent effects in transition-metal sandwich complexes.

Substituent effects in bis(arene)chromium compounds containing a CN group in the aromatic ring

2005 ◽  
Vol 61 (3) ◽  
pp. 304-311 ◽  
Author(s):  
Victor N. Khrustalev ◽  
Alexander Yu. Vasil'kov ◽  
Mikhail Yu. Antipin
Keyword(s):  
Torsion Angle ◽  
Substituent Effects ◽  
Metal Vapor ◽  
X Ray Diffraction ◽  
Aromatic Rings ◽  
Ring Plane ◽  
Sandwich Complexes ◽  
X Ray ◽  
Intermolecular Contacts ◽  
Chromium Compounds

The crystal structures of Cr(PhCN)2 (2), (PhCN)Cr(PhCH3) (3) and (PhCN)Cr(PhCF3) (4) prepared by means of the Metal Vapor Synthesis (MVS) technique have been determined. Compounds (2), (3) and (4) crystallize as discrete sandwich complexes having intrinsic C 2v (mm2), C s (m) and C 1(1) symmetries, respectively. The X-ray diffraction study has revealed a synperiplanar conformation for (2) and (3), and a synclinal conformation for (4) with a torsion angle (C ipso 1–Centroid1–Centroid2–C ipso 2) of φ = 63.5°. The angles between the ligand planes are 2.2, 3.9 and 1.8°, respectively. The Cr atom is slightly (by 0.04–0.06 Å) displaced towards the substituents from the line connecting the centers of the opposite aromatic rings. The Cr—C ipso distances are 2.115 (2)–2.137 (2), 2.112 (2) and 2.185 (3) Å for CN, CF3 and CH3 groups, respectively. The CN groups as well as the H atoms lie out of the C 6 ring planes and are bent towards the Cr atom, but the C atom of the CH3 group also lying out of the C6 ring plane is bent away from the Cr atom. The C atom of the CF3 group is essentially coplanar to the C 6 ring plane. There are no unusual intermolecular contacts in the structures of (2)–(4).

Zero Kinetic Energy Spectroscopy: Mass-Analyzed Threshold Ionization Spectra of Chromium Sandwich Complexes with Alkylbenzenes, (η6-RPh)2Cr (R= Me, Et,i-Pr,t-Bu)†

2010 ◽  
Vol 114 (42) ◽  
pp. 11298-11303 ◽  
Author(s):  
Sergey Y. Ketkov ◽  
Heinrich L. Selzle ◽  
F. Geoffrey N. Cloke ◽  
Gennady V. Markin ◽  
Yury A. Shevelev ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Sandwich Complexes ◽  
Threshold Ionization ◽  
Zero Kinetic Energy

Trimethylsilyl-Substituted Indenyl-TiCl3Half-Sandwich Complexes:  Synthesis, Solid-State Structure, and Analysis of Substituent Effects

2005 ◽  
Vol 24 (11) ◽  
pp. 2577-2581 ◽  
Author(s):  
Thomas Weiss ◽  
Uwe Böhme ◽  
Bernhard Walfort ◽  
Gerd Rheinwald ◽  
Heinrich Lang
Keyword(s):  
Solid State ◽  
Substituent Effects ◽  
State Structure ◽  
Sandwich Complexes ◽  
Solid State Structure

Substituent effects and solvents

1992 ◽  
Vol 89 ◽  
pp. 1567-1571
Author(s):  
O Pytela ◽  
M Ludwig
Keyword(s):  
Substituent Effects
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