Synthesis and characterisation of infinite co-ordination networks from flexible dipyridyl ligands and cadmium salts †
作者:M. John Plater、Mark R. St. J. Foreman、Thomas Gelbrich、Simon J. Coles、Michael B. Hursthouse
DOI:10.1039/b002251i
日期:——
Crystallisation of flexible dipyridyl ligands with Cd(NO3)2·6H2O or CdSO4·6H2O gives co-ordination networks of composition [Cd(NO3)2(Py2CH2)2] 1 [Py2CH2 = 1,1-bis(4-pyridyl)methane]; [Cd2(NO3)4(Py2C3H6)4(H2O)] 2 [Py2C3H6 = 1,3-bis(4-pyridyl)propane]; [Cd2(SO4)2(Py2C3H6)3(H2O)2.7]·4.5H2O 3; [Cd(NO3)2(Py2C4H8)(H2O)2] 4 [Py2C4H8 = 1,4-bis(4-pyridyl)butane]; [Cd2(NO3)4(Py2C5H10)3(H2O)] 5 [Py2C5H10 = 1,5-bis(4-pyridyl)pentane] and [Cd(NO3)2(Py2C6H12)2] 6 [Py2C6H12 = 1,6-bis(4-pyridyl)hexane]. The compounds were characterised by X-ray single crystal diffraction studies. In compounds 1, 2, 4 and 6 the cadmium ions are hexa-co-ordinate with a slightly distorted octahedral geometry. Compounds 3 and 5 both display examples of a less common hepta-co-ordinate cadmium ion geometry. Compounds 2, 3 and 6 exhibit novel modes of interpenetration.
POLYCATIONIC POLYMER AND POLYCATIONIC BACTERICIDAL/ALGICIDAL AGENT
申请人:SAGAMI CHEMICAL RESEARCH CENTER
公开号:EP0676437A1
公开(公告)日:1995-10-11
A polycationic bactericidal/algicidal agent containing as the active ingredient a polymer composed of repeating units represented by general formula (I) and having a number-average molecular weight of 1,000 or above, wherein A represents a single bond, oxygen, phenylene, dioxyethylene or tetramethyldisiloxane; X₁⁻ and X₂⁻ may be the same or different from each other and each represents a counterion of a quaternary salt; p and q may be the same or different from each other and each represents an integer of 1 to 6; and m represents an integer of 0 to 6, provided that A, X₁⁻, X₂⁻, p, q and m may be the same or arbitrarily different from repeating unit to repeating unit.
一种多阳离子杀菌/杀醛剂,其活性成分是由通式(I)所代表的重复单元组成的聚合物,其 数均分子量为 1,000 或以上,其中 A 代表单键、氧、亚苯基、二氧乙烯或四甲基二硅氧烷;X₁- 和 X₂- 可以相同或不同,并且各自代表季盐的反离子; p 和 q 可以相同或不同,并且各自代表 1 至 6 的整数;以及 m 代表 0 至 6 的整数,条件是 A、X₁-、X₂-、p、q 和 m 在重复单元与重复单元之间可以相同或任意不同。
Copper deposition in wafer level packaging of integrated circuits
申请人:MacDermid Enthone Inc.
公开号:US11124888B2
公开(公告)日:2021-09-21
An electrodeposition composition comprising: (a) a source of copper ions; (b) an acid; (c) a suppressor, and (d) a leveler, wherein the leveler comprises a quaternized dipyridyl compound prepared by reacting a dipyridyl compound with a difunctional alkylating agent or a quaternized poly(epihalohydrin). The electrodeposition composition can be used in a process for forming a copper feature over a semiconductor substrate in wafer level packaging to electrodeposit a copper bump or pillar on an underbump structure of a semiconductor assembly.
Structures of Mn(II) thiocyanate co-ordination polymers from flexible bipyridyl ligands
作者:M.John Plater、Mark R.St J. Foreman、R.A. Howie、Janet M.S. Skakle
DOI:10.1016/s0020-1693(01)00398-x
日期:2001.6
Crystallisation of flexible bipyridyl ligands with MnCl2. 4H(2)O and KSCN gives co-ordination polymers of composition [Mn(NCS)(2)(H2O)(2)(Py2C2H4)](Py2C2H4)(2)(H2O)(2) (1) (Py2C2H4 = 1,2-bis(4-pyridyl)ethane), [Mn-2(NCS)(4)(Py2C3H6)(4)](n) (2) (Py2C3H6 = 1,3-bis(4-pyridyl)propane) and [Mn(NCS)(2)(CH3CH2OH)(2)(Py2C6H12)](n) (3) (Py2C6H12 = 1,6-bis(4-pyridyl)hexane). The structures were solved by single crystal structure determinations. (C) 2001 Elsevier Science B.V. All rights reserved.
USE OF POLYCATIONIC POLYMER AS BACTERICIDAL/ALGICIDAL AGENT