Structural control of side-chain chromophores to achieve highly efficient electro-optic activity

2017 ◽  
Vol 19 (18) ◽  
pp. 11502-11509 ◽  
Author(s):  
Yuhui Yang ◽  
Zhuo Chen ◽  
Jialei Liu ◽  
Hongyan Xiao ◽  
Zhen Zhen ◽  
...  
Keyword(s):  
Steric Hindrance ◽  
Structural Control ◽  
Side Chain ◽  
Highly Efficient ◽  
Free Mobility ◽  
Electro Optic

Chromophore J2 in APC provided the best balance between steric hindrance and molecular free mobility with excellent electro-optic coefficients.

Structural Control of the Side-Chain Chromophores To Achieve Highly Efficient Nonlinear Optical Polyurethanes

2006 ◽  
Vol 39 (20) ◽  
pp. 6951-6961 ◽  
Author(s):  
Zhong'an Li ◽  
Zhen Li ◽  
Chong'an Di ◽  
Zhichao Zhu ◽  
Qianqian Li ◽  
...  
Keyword(s):  
Structural Control ◽  
Nonlinear Optical ◽  
Side Chain ◽  
Highly Efficient

METABOLISM OF 17α-HYDROXYPROGESTERONE-4-14C-17α-CAPROATE BY HOMOGENATES OF RAT LIVER AND HUMAN PLACENTA

1961 ◽  
Vol 36 (4) ◽  
pp. 511-519 ◽  
Author(s):  
Margaret Wiener ◽  
Charles I. Lupa ◽  
E. Jürgen Plotz
Keyword(s):  
Rat Liver ◽  
Human Placenta ◽  
Steric Hindrance ◽  
Placental Tissue ◽  
Caproic Acid ◽  
Major Product ◽  
Side Chain ◽  
Anaerobic Conditions ◽  
Prolonged Action ◽  
Long Acting

ABSTRACT 17α-hydroxyprogesterone-4-14C-17α-caproate (HPC), a long-acting progestational agent, was incubated with homogenates of rat liver and human placenta. The rat liver was found to reduce Ring A of HPC under anaerobic conditions to form allopregnane-3β,17α-diol-20-one-17α-caproate and pregnane-3β,17α-diol-20-one-17α-caproate, the allopregnane isomer being the major product. The caproic acid ester was neither removed nor altered during the incubation. Placental tissue did not attack HPC under conditions where the 20-ketone of progesterone was reduced. It is postulated that this absence of attack on the side chain is due to steric hindrance from the caproate ester, and that this may account for the prolonged action of HPC.

New Dithiazole Side Chain Benzodithiophene Containing D–A Copolymers for Highly Efficient Nonfullerene Solar Cells

2021 ◽  
pp. 2100053
Author(s):  
Muhammed L. Keshtov ◽  
Ionv O. Konstantinov ◽  
ILya E. Ostapov ◽  
Alexei R. Khokhlov ◽  
Vladimir G. Alekseev ◽  
...  
Keyword(s):  
Solar Cells ◽  
Side Chain ◽  
Highly Efficient

Side-chain maleimide based electro-optic polymer for second-order nonlinear optics

2006 ◽  
Vol 2 (6) ◽  
pp. 443-444 ◽  
Author(s):  
Jian-xun Hong ◽  
Jian-ping Chen ◽  
Xin-wan Li ◽  
Wei Chen ◽  
Tao Xie
Keyword(s):  
Nonlinear Optics ◽  
Second Order ◽  
Side Chain ◽  
Electro Optic

The Rates and Products of Addition of 4-Chlorobenzenesulfenyl Chloride to a Series of Side Chain Methyl Substituted Styrenes

1974 ◽  
Vol 52 (9) ◽  
pp. 1807-1812 ◽  
Author(s):  
George H. Schmid ◽  
Dennis G. Garratt
Keyword(s):  
Steric Hindrance ◽  
Side Chain ◽  
Methyl Groups ◽  
Methyl Group

The rates of addition and the product compositions have been determined for the addition of 4-chlorobenzenesulfenyl chloride to a series of seven side chain methyl substituted styrenes in 1,1,2,2-tetrachloroethane at 25°. Unlike the addition to the corresponding series of methylated ethylenes, the effect of the methyl groups is not cumulative. The effect of the methyl groups depends upon whether or not the β-methyl group is cis to the phenyl. When it is cis, the rate of addition is decreased compared to styrene and substitution of additional methyl groups has only a small effect on the rate of addition. In compounds lacking a cis-β-methyl group the rate of addition more closely resembles that for addition to the methylated ethylenes. Steric hindrance between the cis-methyl and phenyl groups is believed to be the cause of this difference in behavior between the ethylene and styrene series.

The Preparation and Properties of Some Cyclic β-Diketone Diimines

1973 ◽  
Vol 51 (4) ◽  
pp. 505-513 ◽  
Author(s):  
Kenneth Charles Moss ◽  
Frank Price Robinson
Keyword(s):  
Spectral Data ◽  
Schiff Bases ◽  
Steric Hindrance ◽  
Condensation Reaction ◽  
Side Chain ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Aliphatic Diamines

The condensation reaction between a series of aliphatic diamines and a series of five- and six-membered cyclic β-diketones to form Schiff bases was investigated. Mass spectral data show that reaction occurred on the side-chain carbonyl except where steric hindrance forced condensation to occur on the ring carbonyl. N.m.r. studies show that these Schiff bases exist primarily in the ketamine form in solution, irrespective of the solvent. I.r. data confirm this. The preparation of a number of Cu(II) and Ni(II) complexes from some of the ligands is also described.

Electro-optic properties of a side chain poly(norbornene-dicarboximide) system with an appended phenyl vinylene thiophene chromophore

Polymer ◽  
2017 ◽  
Vol 119 ◽  
pp. 13-27 ◽  
Author(s):  
Andrew M. Spring ◽  
Feng Qiu ◽  
Jianxun Hong ◽  
Alisa Bannaron ◽  
Shiyoshi Yokoyama
Keyword(s):  
Side Chain ◽  
Electro Optic
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