【摘 要】
:
Herein,we prepared two novel pairs of enantiomeric gold cluster complexes,Au4PL4/Au4PD4 and(Au4L4)n/(Au4D4)n with atomic precision.In Au4PL4/Au4PD4,the discrete
【机 构】
:
Green Catalysis Center,and College of Chemistry,Zhengzhou University,Zhengzhou 450001,China
论文部分内容阅读
Herein,we prepared two novel pairs of enantiomeric gold cluster complexes,Au4PL4/Au4PD4 and(Au4L4)n/(Au4D4)n with atomic precision.In Au4PL4/Au4PD4,the discrete chiral Au4-based aggregation-induced emission(AIE)luminogens are separated by bulky substitutes.The corresponding aggregates are cyan-emitting with a photoluminescence quantum yield(PLQY)of 14.4%.Upon decreasing the size of the substituents,these chiral Au4 clusters are strung together by inter-cluster Au-Au interactions,which cause a low-energy green emission from the aggregated(Au4Lt)n/(Au4D4)n with a much higher PLQY of 41.4%and more intense circularly polarised photoluminescence(CPL)with a dissymmetry factor 丨gPL丨 of 7.0 × 10-3.Using(Au4L4)n/(Au4D4)n,circularly polarised organic light-emitting diodes(CP-OLEDs)were for the first time fabricated with 丨gEL丨 = 丨gPL丨.These findings signify that inter-cluster metallophilic interactions are a new and important type of driving force for AIE and crystallization-induced emission(CIE),suggesting great potential of CPL-active metal clusters in CP-OLEDs.
其他文献
Developing metal-free and long lifetime room-temperature phosphorescence(RTP)materials has received tremendous interest due to their numerous potential applicat
艺术观察是一个复杂的活动,是主观内在精神与客观外部世界的个性化感悟。对于画家来说注意观察事物,敏锐地把握事物本质,正是发挥形象思维的特性。画家存在的意义,不仅仅是能
Electrocatalytic water splitting via hydrogen evolution reaction(HER)represents one of promising strategies to gain hydrogen energy.In current work,self-support
人力资源和社会保障部部长尹蔚民日前在全国人力资源和社会保障工作会议上表示,必须加快完善各项社会保险制度,建立健全覆盖城乡居民的社会保障体系,尽
Yin Weimin, ministe
定级工作是信息安全等级保护工作重要的组成部分,也是等级测评工作的基础.定级的准确性、科学性、客观性直接影响到重要信息系统安全的测评深度和等级保护工作开展的有效性.
1.预防倒春寒。①加强苗期管理,培育健壮植株,增强植株自身抵抗力。②寒流来临前适时灌水,可以降低冻害程度。③多层覆盖。棚内可增加1~2层小拱棚,棚四周外侧加围草苫,可使棚
2006年底,“微笑列车”已经完成101000例唇腭裂矫治手术,是迄今为止我国慈善医疗救助史上最大的项目之一。南昌大学医学院附属口腔医院(以下简称口腔医院)6楼,王予江的办公桌
IPv4是当前互联网基础设施的关键组成部分,随着互联网的迅猛发展,32位的地址资源早已不能满足现实需求.而IPv6协议解决了地址空间问题,其扩展性优良、配置简单,支持QoS.但IPv
太阳是离我们最近的恒星。如果没有太阳,地球会变成什么样子呢?The Sun is our nearest star.The Sun provides us with light and heat.Without the Sun there would be no
传说,19世纪70年代,欧洲一位医生喂养了一些小兔子。一天,医生看着这些活泼可爱的小兔子突然愧疚起来,小兔子长大为自己提供了鲜美可口的美食,而自己只给它们吃些白菜叶和青草,这是不是太不公平了?于是,他改给这些小兔子喂食牛奶和面包。 过了一段时间,这些小兔子并没像这位医生想象的那样长得肥美健壮,而是一个个无精打采,瘦弱不堪。这位医生觉得奇怪,爱思考问题的他觉得这里面一定有原因,便捉了几只进行解剖。