申请人:——
公开号:US20040097755A1
公开(公告)日:2004-05-20
Ionic compounds with a freezing point of up to 100° C. are formed by the reaction of an one amine salt of formula (I) R
1
R
2
R
3
R
4
N
+
X
−
, such as choline chloride with an organic compound (II) capable of forming a hydrogen bond with X; such as urea, wherein the molar ration of I to II is from 1:1.5 to 1:2.5. R
1
, R
2
, R
3
and R
4
may be H, optionally substituted C
1
to C
5
alkyl, optionally substituted C
6
to C
10
cycloalkyl, optionally substituted C
6
to C
12
aryl, optionally substituted C
7
to C
12
alkaryl, or R
1
and R
2
taken together may represent a C
4
to C
10
optionally substituted alkylene group, thereby forming with the N atom of formula I a 5 to 11-membered heterocyclic ring and all of R
1
, R
2
, R
3
and R
4
are not identical, X
−
may be NO
3
−
, F, Cl
−
, Br
−
, I
−
, BF
4
−
, ClO
4
−
, CN
−
, SO
3
CF
3
−
, or COOCF
3
−
. The ionic compounds are useful as solvents, and electrolytes for example in electroplating, electrowinning, and electropolishing, and as catalysts.
通过将具有冰点高达100°C的离子化合物的制备方法,反应一个胺盐(化学式(I)R1R2R3R4N+X−,例如氯甲基胆碱)与一个有能力与X形成氢键的有机化合物(化学式(II),例如尿素),其中I与II的摩尔比为1:1.5至1:2.5。R1、R2、R3和R4可以是H,也可以是选择性取代的C1到C5烷基,选择性取代的C6到C10环烷基,选择性取代的C6到C12芳基,选择性取代的C7到C12烷芳基,或者R1和R2一起可以代表一个C4到C10可选择取代的亚烷基基团,从而与化学式I的N原子形成一个5到11成员的杂环环,并且R1、R2、R3和R4中的所有成员不相同,X−可以是NO3−、F、Cl−、Br−、I−、BF4−、ClO4−、CN−、SO3CF3−或COOCF3−。这些离子化合物可用作溶剂和电解质,例如在电镀、电解和电化学抛光中,还可用作催化剂。