申请人:NOVAUCD
公开号:US20160087295A1
公开(公告)日:2016-03-24
The present invention relates to a process for the production of hydrogen comprising contacting at least one complex of formula (I), (I) wherein: X
−
is an anion; M is a metal selected from Ru, Os, Fe, Co and Ni; D is optionally present and is one or more monodentate or multidentate donor ligands; Y
1
is selected from CR
13
, B and N; Z
1
and Z
2
are each independently selected from ═N, ═P, NR
14
, PR
15
, O, S and Se; or Z
2
is a direct bond between carbocyclic ring B and substituent R
4
; each of A and B is independently a saturated, unsaturated or partially unsaturated carbocyclic hydrocarbon ring; R
3
and R
4
are each independently selected from H, C
1-6
-alkyl, aryl and C
1-6
-haloalkyl, and a linker group optionally attached to a solid support; or R
3
and R
4
together form the following moiety: (AB) Y
2
is a direct single bond or double bond, or is CR
18
; R
1
, R
2
, R
5-13
and R
16-18
are each independently selected from H, C
1-6
-alkyl, C
2-6
-alkenyl, C
2-6
-alkynyl, aryl, C
1-6
-haloalkyl, NR
19
R
20
and a linker group optionally attached to a solid support; or two or more of said R
1-13
and R
16-18
groups are linked, together with the carbons to which they are attached, to form a saturated or unsaturated hydrocarbon group; R
14
, R
15
, R
19
and R
20
are each independently selected from H, C
1-6
-alkyl, C
2-6
-alkenyl, C
2-6
-alkynyl, aryl, C
1-6
-haloalkyl, and a linker group optionally attached to a solid support; with at least one substrate of formula (II), R
21
R
22
NH—BHR
23
R
24
, wherein R
21
to R
24
are each independently selected from H, C
1-6
-alkyl, fluoro-substituted C
1-6
-alkyl, C
6-14
-aryl and C
6-14
-aralkyl, or any two of R
21
, R
22
, R
23
and R
24
are linked to form a C
3-10
-alkylene group or C
3-10
-alkenylene group, which together with the nitrogen and/or boron atoms to which they are attached, forms a cyclic group; or a substrate comprising two, three or four substrates of formula (II) linked via one or more bridging groups so as to form a dimeric, trimeric or tetrameric species, and wherein the bridging group is selected from straight or branched C
1-6
-alkylene optionally substituted by one or more fluoro groups, boron, C
6-14
-aryl and C
6-14
-aralkyl; or a substrate comprising two, three or four substrates of formula (II) which are joined so as to form a fused cyclic dimeric, trimeric or tetrameric species. Further aspects of the invention relate to a hydrogen generation system comprising a complex of formula (I), a substrate of formula (II) and a solvent, and to the use of complexes of formula (I) in fuel cells. Another aspect of the invention relates to novel complexes of formula (I).
本发明涉及一种制备氢气的方法,包括将式(I)的至少一个配合物与式(II)的至少一个底物接触,其中:式(I)中:X-是阴离子;M是从Ru、Os、Fe、Co和Ni中选择的金属;D可以存在,是一种或多种单齿或多齿供体配体;Y1选择自CR13、B和N;Z1和Z2各自独立地选择自═N、═P、NR14、PR15、O、S和Se;或者Z2是环状碳基环B和取代基R4之间的直接键;A和B各自独立地为饱和、不饱和或部分不饱和的碳环烃环;R3和R4各自独立地选择自H、C1-6-烷基、芳基和C1-6-卤代烷基,并且可以附加到固体支持上的连接基;或者R3和R4一起形成以下基团:(AB);Y2是直接的单键或双键,或者是CR18;R1、R2、R5-13和R16-18各自独立地选择自H、C1-6-烷基、C2-6-烯基、C2-6-炔基、芳基、C1-6-卤代烷基、NR19R20和可以附加到固体支持上的连接基;或者所述的R1-13和R16-18中的两个或更多个基团被连接起来,与它们连接的碳一起形成饱和或不饱和的碳氢基团;R14、R15、R19和R20各自独立地选择自H、C1-6-烷基、C2-6-烯基、C2-6-炔基、芳基、C1-6-卤代烷基和可以附加到固体支持上的连接基;式(II)中:R21至R24各自独立地选择自H、C1-6-烷基、氟取代的C1-6-烷基、C6-14-芳基和C6-14-芳基烷基;或者R21、R22、R23和R24中的任意两个被连接起来形成C3-10-烷基或C3-10-烯基,它们与它们连接的氮和/或硼原子一起形成环状基团;或者包括通过一个或多个桥接基团连接的两个、三个或四个式(II)底物,以形成二聚体、三聚体或四聚体物种,其中桥接基团选择自直链或支链的C1-6-烷基,可选地被一个或多个氟基、硼、C6-14-芳基和C6-14-芳基烷基取代;或者包括两个、三个或四个式(II)底物,它们被连接起来形成融合的环状二聚体、三聚体或四聚体物种。本发明的另一方面涉及一种包括式(I)的配合物、式(II)的底物和溶剂的制氢系统,以及在燃料电池中使用式(I)的配合物的用途。本发明的另一方面涉及式(I)的新型配合物。