Unsubstituted quinoidal pyrrole and its reaction with oxygen, charge transfer and palladium(ii) complexes via DDQ oxidation

RSC Advances ◽  
2014 ◽  
Vol 4 (85) ◽  
pp. 45603-45611 ◽  
Author(s):  
Debasish Ghorai ◽  
Ganesan Mani
Keyword(s):  
Charge Transfer ◽  
Palladium Complexes ◽  
New Class ◽  
Donor Acceptor ◽  
Ddq Oxidation

A new class of reactive quinoidal structure of pyrrole, which forms donor–acceptor and binuclear palladium complexes, and the products of its reaction with O2 only under sunlight are described.

scholarly journals All-polymeric control of nanoferronics

2015 ◽  
Vol 1 (11) ◽  
pp. e1501264 ◽  
Author(s):  
Beibei Xu ◽  
Huashan Li ◽  
Asha Hall ◽  
Wenxiu Gao ◽  
Maogang Gong ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Research Effort ◽  
Charge Order ◽  
Polymeric Chain ◽  
Charge Transfer Complexes ◽  
Coupling Mechanism ◽  
New Class ◽  
Air Interface ◽  
Significant Research ◽  
Donor Acceptor

In the search for light and flexible nanoferronics, significant research effort is geared toward discovering the coexisting magnetic and electric orders in crystalline charge-transfer complexes. We report the first example of multiferroicity in centimeter-sized crystalline polymeric charge-transfer superstructures that grow at the liquid-air interface and are controlled by the regioregularity of the polymeric chain. The charge order–driven ferroic mechanism reveals spontaneous and hysteretic polarization and magnetization at the donor-acceptor interface. The charge transfer and ordering in the ferroic assemblies depend critically on the self-organizing and molecular packing of electron donors and acceptors. The invention described here not only represents a new coupling mechanism of magnetic and electric ordering but also creates a new class of emerging all-organic nanoferronics.

scholarly journals Tuning π-Acceptor/σ-Donor Ratio of the 2-Isocyanoazulene Ligand: Non-Fluorinated Rival of Pentafluorophenyl Isocyanide and Trifluorovinyl Isocyanide Discovered

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 981
Author(s):  
Mason D. Hart ◽  
John J. Meyers ◽  
Zachary A. Wood ◽  
Toshinori Nakakita ◽  
Jason C. Applegate ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Coordination Chemistry ◽  
Single Crystal ◽  
13C Nmr ◽  
Quantitative Assessment ◽  
X Ray ◽  
New Class ◽  
Linear Relationships ◽  
Ligand Charge Transfer ◽  
Donor Characteristics

Isocyanoazulenes (CNAz) constitute a relatively new class of isocyanoarenes that offers rich structural and electronic diversification of the organic isocyanide ligand platform. This article considers a series of 2-isocyano-1,3-X2-azulene ligands (X = H, Me, CO2Et, Br, and CN) and the corresponding zero-valent complexes thereof, [(OC)5Cr(2-isocyano-1,3-X2-azulene)]. Air- and thermally stable, X-ray structurally characterized 2-isocyano-1,3-dimethylazulene may be viewed as a non-benzenoid aromatic congener of 2,6-dimethyphenyl isocyanide (2,6-xylyl isocyanide), a longtime “workhorse” aryl isocyanide ligand in coordination chemistry. Single crystal X-ray crystallographic {Cr–CNAz bond distances}, cyclic voltametric {E1/2(Cr0/1+)}, 13C NMR {δ(13CN), δ(13CO)}, UV-vis {dπ(Cr) → pπ*(CNAz) Metal-to-Ligand Charge Transfer}, and FTIR {νN≡C, νC≡O, kC≡O} analyses of the [(OC)5Cr(2-isocyano-1,3-X2-azulene)] complexes provided a multifaceted, quantitative assessment of the π-acceptor/σ-donor characteristics of the above five 2-isocyanoazulenes. In particular, the following inverse linear relationships were documented: δ(13COtrans) vs. δ(13CN), δ(13COcis) vs. δ(13CN), and δ(13COtrans) vs. kC≡O,trans force constant. Remarkably, the net electron withdrawing capability of the 2-isocyano-1,3-dicyanoazulene ligand rivals those of perfluorinated isocyanides CNC6F5 and CNC2F3.

Ultrafast Charge Transfer and Relaxation at a Donor–Acceptor Interface

2021 ◽  
Author(s):  
Fernando Rodríguez Díaz ◽  
Hong-Guang Duan ◽  
R. J. Dwayne Miller ◽  
Michael Thorwart
Keyword(s):  
Charge Transfer ◽  
Donor Acceptor ◽  
Ultrafast Charge Transfer

A New Class of Oxygen Nucleophiles for Regioselective 1,4-Addition to Butadiene Monoxide Catalyzed by Palladium Complexes

1997 ◽  
Vol 38 (17) ◽  
pp. 3081-3084 ◽  
Author(s):  
Daniele Bianchi ◽  
Cecilia Querci* ◽  
Marco Ricci ◽  
Roberto Santi
Keyword(s):  
Palladium Complexes ◽  
New Class

Theoretical study on the charge transfer mechanism at donor/acceptor interface: Why TTF/TCNQ is inadaptable to photovoltaics?

2016 ◽  
Vol 145 (24) ◽  
pp. 244705 ◽  
Author(s):  
Shuang-Bao Li ◽  
Yun Geng ◽  
Yu-Ai Duan ◽  
Guang-Yan Sun ◽  
Min Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Theoretical Study ◽  
Transfer Mechanism ◽  
Charge Transfer Mechanism ◽  
Donor Acceptor
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