The exploration of Kemp's triacid (KTA) as the core for the synthesis of 3-fold symmetric 23-cyclophane, 22-cyclophane and novel linker directed designs
Compounds of Formula (1) are disclosed.
C
b
is a carbocyclic or heterocyclic group having an atom within the cyclic structure selected from C, N, Si, and C
r
and singly bound to A. A is CR, COR, CSR, CNR
2
, CCN, CCONR
2
, CNO
2
, CNNAr, CX′, or N. C
r
is a chromophore having a substantially planar cyclic structure. The compounds function as nanometer-scale rotary molecular motors powered and controlled by light energy. The design of the molecular motor devices is flexible so that the rotary direction, drive light wavelength, and other physical characteristics can be varied. The compounds can be chemically functionalized to allow it to be integrated into or attached to a variety of structures. The device can be used in applications where mechanical power, positional control, and information encoding are to be generated at the size scale of individual molecules.
式(1)的化合物已被披露。
C
b
是一个具有环结构内选自C、N、Si和C
r
的原子的碳环或杂环基团,并与A单键相连。A是CR、COR、CSR、CNR
2
、CCN、CCONR
2
、CNO
2
、CNNAr、CX′或N。C
r
是具有基本平面环结构的色团。这些化合物作为受光能驱动和控制的纳米尺度旋转分子马达。分子马达装置的设计灵活,使得旋转方向、驱动光波长和其他物理特性可以变化。这些化合物可以在化学上官能化,以使其能够集成到或附着到各种结构中。该装置可用于需要在单个分子尺度上产生机械动力、位置控制和信息编码的应用中。
CURING AGENTS FOR EPOXY RESINS
申请人:Dershem Stephen M
公开号:US20130012620A1
公开(公告)日:2013-01-10
The present invention relates to curatives for epoxy resins, and compositions (e.g. adhesives) containing such resins cured using the same methods of preparation and uses therefor. More specifically, the present invention relates to hybrid curatives for epoxy resins comprising both aromatic amine, phenol and/or phenyl ester moieties. A further aspect of the current invention relates to new imidazole catalysts that possess a combination of excellent cure latency as well as low cure temperature onset.
Compounds of the formula
wherein M is either (1) a metal ion having a positive charge of +y wherein y is an integer which is at least 2, said metal ion being capable of forming a compound with at least two
chromogen moieties, or (2) a metal-containing moiety capable of forming a compound with at least two
chromogen moieties, z is an integer representing the number of
chromogen moieties associated with the metal and is at least 2, R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, a, b, c, d, Y, and z are as defined herein, Q
−
is a COO
−
group or a SO
3
— group, A is an organic anion, and CA is either a hydrogen atom or a cation associated with all but one of the Q
−
groups.
Controlled Aggregation of Multiple Guanidinium Ions through a Hydrogen-Bonded Network Assembly with Deprotonated Forms of Kemp’s Triacid
作者:Jie Han、Shuang-Quan Zang、Thomas C. W. Mak
DOI:10.1002/chem.200903134
日期:——
incorporate the guanidiniumion and various deprotonatedforms of Kemp’striacid (H3KTA) have been synthesized and characterized by single‐crystal X‐ray analysis. The complex [C(NH2)3+]⋅[H2KTA−] (1) exhibits a sinusoidal layer structure with a centrosymmetric pseudo‐rosette motif composed of two ion pairs. The fully deprotonatedKemp’striacid moiety in 3 [C(NH2)3+]⋅[KTA3−] (2) forms a record number
The invention provides methods and materials related to treating and diagnosing autoimmune conditions. Specifically, the invention provides polypeptide compositions, nucleic acids, substantially pure polypeptides, host cells, and methods for identifying a mammal with an autoimmune condition, treating a mammal with an autoimmune condition, and enhancing tolerance in a mammal with an autoimmune condition.