Organic compound, crystal dielectric layer and capacitor
申请人:Capacitor Sciences Incorporated
公开号:US10026553B2
公开(公告)日:2018-07-17
The present disclosure provides an organic compound characterized by electronic polarizability and having a following general structural formula:
where Core is an aromatic polycyclic conjugated molecule, R1 is group providing solubility of the organic compound in an organic solvent, n is 1, 2, 3, 4, 5, 6, 7 or 8, R2 is substitute located in apex positions, R3 and R4 are substitutes located in side (lateral) positions and, the core has flat anisometric form and the R2 substitutes are selected from hydrogen and electrophilic groups (acceptors) and R3 substitutes and R4 substitutes are independently selected from hydrogen and nucleophilic groups (donors) or vice versa R3 substitutes and R4 substitutes are independently selected from hydrogen and nucleophilic groups (donors) and R2 substitutes are selected from hydrogen and electrophilic groups (acceptors), and the substitutes R2, R3 and R4 cannot all be hydrogen.
NMR-based molecular ruler for determining the depth of intercalants within the lipid bilayer
作者:Yael Cohen、Efrat Bodner、Michal Richman、Michal Afri、Aryeh A. Frimer
DOI:10.1016/j.chemphyslip.2008.07.004
日期:2008.10
The development of "molecular rulers" would allow one to quantitatively locate intercalants within the liposomal bilayer. To this end, we have attempted to correlate the C-13 NMR chemical shift of a polarizable "reporter" carbon (e.g., carbonyl) of the intercalant-with the E-T(30) polarity it experiences, and with its Angstrom distance from the interface. This requires families of molecules with the same two "reporter carbons" separated by a fixed distance, residing at various depths/polarities within the bilayer. The families studied included 4,4-dialkylcyclohexa-2,5-dienones 1, benzenediacetic esters 15, benzenedipropionic esters 17, 4-alkoxybenzaldehydes 19 and methyl 4-alkoxybenzoates 22. These compounds possessed the following characteristics: (1) a planar backbone; (2) polar/hydrophilic "head" groups: (3) modular hydrophobic tails; (4) large changes in the C-13 NMR chemical shift (Delta delta) of the reporter atoms with sol- vent polarity. These studies revealed a fifth requirement, namely: (5) the reporter carbons must not be strongly conjugated, lest it reflect the charge build-up at another site within the conjugated system. (C) 2008 Elsevier Ireland Ltd. All rights reserved.
Novel fatty acid-lactic acid ester
申请人:Kao Corporation
公开号:EP0278370B1
公开(公告)日:1992-01-02
ORGANIC COMPOUND, CRYSTAL DIELECTRIC LAYER AND CAPACITOR
申请人:Capacitor Sciences Incorporated
公开号:US20170117097A1
公开(公告)日:2017-04-27
The present disclosure provides an organic compound characterized by electronic polarizability and having a following general structural formula:
where Core is an aromatic polycyclic conjugated molecule, R
1
is group providing solubility of the organic compound in an organic solvent, n is 1, 2, 3, 4, 5, 6, 7 or 8, R
2
is substitute located in apex positions, R3 and R4 are substitutes located in side (lateral) positions and, the core has flat anisometric form and the R
2
substitutes are selected from hydrogen and electrophilic groups (acceptors) and R
3
substitutes and R
4
substitutes are independently selected from hydrogen and nucleophilic groups (donors) or vice versa R
3
substitutes and R
4
substitutes are independently selected from hydrogen and nucleophilic groups (donors) and R
2
substitutes are selected from hydrogen and electrophilic groups (acceptors), and the substitutes R
2
, R
3
and R
4
cannot all be hydrogen.