WATER-SOLUBLE NEAR-INFRARED ABSORBING COLORING MATTERS AND AQUEOUS INKS CONTAINING SAME
申请人:Hirota Koji
公开号:US20110123784A1
公开(公告)日:2011-05-26
Coloring matters represented by general formula (1) or salts thereof are simply provided at a low cost as water-soluble coloring matters which exhibit absorption in the near-infrared region. Further, aqueous ink compositions which contain the coloring matters and have excellent storage stability are also provided. In general formula (1), Nc is optionally substituted naphthalocyanine; M is a metal oxide or the like; R
1
and R
2
are each independently hydrogen or the like; A is a crosslinking group; X and Y are each independently substituted arylamino or the like; k is more than 0 but up to 12 (on average); p is 0 to less than 12; the sum of k and p is more than 0 but up to 12; and any two or the three of R
1
, R
2
and A may be united to form a ring.
US8404036B2
申请人:——
公开号:US8404036B2
公开(公告)日:2013-03-26
The chemistry of functional group arrays. Electrostatic catalysis and the “intramolecular salt effect”.
作者:Paul J. Smith、Craig S. Wilcox
DOI:10.1016/s0040-4020(01)81794-4
日期:——
Ionic groups and salt bridges in the active sites of enzymes are thought to have important effects upon substrate reactivity. This paper describes the evaluation of an ion pair as an intramoleculareffector of reaction rate for an addition reaction. The results reveal that in chloroform the intramolecularsalteffect can lead to very large rate enhancements. It is proposed that in this case the local