A charge-neutral organometallic dendrimer is described, said dendrimer having the formula (I):
CORE-[DENDRITE(-Q)
a
]
n
(I)
in which CORE represents a group of formula MX
X
Y
Z
, in which M represents a metal cation, x represents an integer of 1 or more, each X which may be the same or different represents a mono-, bi- or tri-dentate coordinating group, z represents 0 or an integer of 1 or more, and each Y which may be the same or different represents a coordinating group, the total of (b.x)+(c.z) being equal to the number of coordination sites on M, wherein b is the number of coordination sites on X and c is the number of coordination sites on Y; n represents an integer of 2 or more; each DENDRITE which may be the same or different represents a dendritic molecular structure bonded to a group X; a represents 0 or an integer of 1 or more; and each Q which may be the same or different represents a surface group; CORE terminating in the first single bond which is connected to a branching group or branching atom of DENDRITE; which dendrimer has a structure in which no hemisphere of a notional sphere centred on M and containing the dendrimer is devoid of a said first single bond.
描述了一种带电中性的有机
金属树状分子,该树状分子具有公式(I):CORE-[DENDRITE(-Q)a]n(I),其中CORE表示公式MXXYZ的一组,其中M表示
金属阳离子,x表示1或更多的整数,每个X可以相同或不同,表示单、双或三
配体配位基团,z表示0或1或更多的整数,每个Y可以相同或不同,表示配位基团,(b.x)+(c.z)的总和等于M上的配位位点数,其中b是X上的配位位点数,c是Y上的配位位点数;n表示2或更多的整数;每个DENDRITE可以相同或不同,表示连接到X基团的树状分子结构;a表示0或1或更多的整数;每个Q可以相同或不同,表示表面基团;CORE在连接到DENDRITE的分支基团或分支原子的第一个单键中终止;该树状分子具有一种结构,在该结构中,以M为中心的虚拟球的任何半球都不缺少所述第一个单键。