Synthesis and characterization of hexacoordinate cobalt(III) complexes bearing three C,O-bidentate ligands
摘要:
Hexacoordinated Co(III) complexes bearing three C,O-bidentate ligands (9a and 9b) were prepared from 1-bromo-2-(P-tolyloxymethyl)benzene (8a) and 1-bromo-2,6-bis(p-tolyloxymethyi)benzene (8b), respectively. Both complexes were stable in air at room temperature. X-ray analyses revealed that the structures of both complexes were essentially the same. According to variable temperature H-1 NMR study, it was found that the two oxygen ligands on the same aromatic ring of 9b interchanged with each other. (c) 2006 Elsevier B.V. All rights reserved.
DIPHENYLSULFONE CROSSLINKED COMPOUND, COLOR DEVELOPMENT SUBSTANCE FOR THERMAL RECORDING AND THERMAL RECORDING MATERIAL
申请人:NICCA CHEMICAL CO., LTD.
公开号:EP2314573A1
公开(公告)日:2011-04-27
Diphenylsulfone bridged compounds of the general formula: (1) wherein n is an integer of 1. to 10. Further, there is disclosed a thermal recording material comprising a support and, superimposed thereon, a thermosensitive color forming layer containing a color forming substance for thermal recording consisting of any of the diphenylsulfone bridged compounds and a color forming substance consisting of a colorless or light-colored leuco dye. This thermal recording material excels in the storability, especially wet heat resistance and oil resistance, of image areas and further exhibits excellent characteristics in the storability, especially heat resistance, of undeveloped areas.
通式如下的二苯砜桥接化合物(1) 其中 n 为 1 至 10 的整数。此外,还公开了一种热敏记录材料,该材料包括一个支架和叠加在支架上的热敏彩色形成层,该热敏彩色形成层含有热敏记录用彩色形成物质,该彩色形成物质由任意一种二苯砜桥接化合物和彩色形成物质组成,该彩色形成物质由无色或浅色的leuco染料组成。这种热敏记录材料在图像区域的储存性,特别是湿热和耐油性方面表现出色,在未显影区域的储存性,特别是耐热性方面也表现出优异的特性。
DIPHENYLSULFONE BRIDGED COMPOUND, COLOR FORMING SUBSTANCE FOR THERMAL RECORDING AND THERMAL RECORDING MATERIAL
申请人:Saito Hajime
公开号:US20110136664A1
公开(公告)日:2011-06-09
Diphenylsulfone bridged compounds of the general formula: (1) wherein n is an integer of 1 to 10. Further, there is disclosed a thermal recording material comprising a support and, superimposed thereon, a thermosensitive color forming layer containing a color forming substance for thermal recording consisting of any of the diphenylsulfone bridged compounds and a color forming substance consisting of a colorless or light-colored leuco dye. This thermal recording material excels in the storability, especially wet heat resistance and oil resistance, of image areas and further exhibits excellent characteristics in the storability, especially heat resistance, of undeveloped areas.