Molecular motion in crown ethers. Application of 13C and 2H NMR to the study of 4-carboxybenzo-24-crown-8 ether and its KNCS complex in solution and in the solid phase
with a pair of photoactive terminal groups, dibenz[b,f]azepine (DBA) chromophores (DBA–COCH2CH2(OCH2CH2)nOCH2CH2CO–DBA, n=0–10) was examined. The photoirradiation of bichromophoric compounds caused either intra- or intermolecular reactions. These reactions were kinetically analyzed by two different methods: the measurement of deactivation processes of the reaction intermediates (excited triplet state
Synthesis of 2-(diphenylphosphoryl)phenyl ethers of ethylene glycols and structure of their sodium and potassium complexes
作者:I. S. Ivanova、I. N. Polyakova、V. E. Baulin、E. N. Pyatova、E. S. Krivorot’ko、A. Yu. Tsivadze
DOI:10.1134/s1070363216040186
日期:2016.4
assembly on sodium and cesium cations were used to prepare 2-(diphenylphosphoryl)phenyl ethers of ethyleneglycols Ln with varied number of polyether units (n = 3–8). Previously unknown dinitro and disulfo derivatives of 2-(diphenylphosphoryl)phenyl ethers of di- and triethylene glycols were synthesized. Complexes [NaL4]NCS·C6H6, [NaL4]ClO4, [KL5]NCS, and [KL5]ReO4 were synthesized, and their crystal structure
Aqueous copper plating baths and a method for deposition of copper or copper alloy onto a substrate
申请人:Atotech Deutschland GmbH
公开号:US10767275B2
公开(公告)日:2020-09-08
The present invention relates to bisurea derivatives and their use in aqueous plating baths for copper and copper alloy deposition in the manufacture of printed circuit boards, IC substrates, semiconducting and glass devices for electronic applications. The plating bath according to the present invention comprises at least one source of copper ions and a bisurea derivative. The plating bath is particularly useful for filling recessed structures with copper and build-up of pillar bump structures.