Supramolecular Self-assembly of Amphiphilic Alkynylplatinum(II)2,6-Bis(N-alkylbenzimidazol-2′-yl)pyridine Complexes

Alkynylplatinum(II)bzimpy complexes of trimethylammoniumbenzylethynyl ligand have been synthesized and characterized.Complexes with long alkyl chains have been found to exhibit interesting self-assembly properties in the acetonitrile solution.The amphiphilic nature of the complexes has led to the formation of nanorods,as revealed by electron microscopy experiments.Further increasing the polarity of the solvent media has given rise to the enhancement of low-energy emission.

Substituent-Mediated Transformation of Polynuclear Gold(I)-Sulfido Complexes—From Pentanuclear to Octadecanuclear Cluster-to-Cluster Transformation

Polynuclear gold complexes show diverse structures and bonding.An exploration into their transformation represents a challenging area of research.Herein,an unprecedented substituent-mediated transformation from pentagold(I)to octadecagold(I)complexes has been observed.These gold(I)-sulfido complexes with distinct structures have been fully characterized,and the transformation process has been monitored by NMR spectroscopy in solution state.

Synthesis of benzo[b]phosphole-based alkynylgold(I)complexes with resistive memory properties modulated by donor–acceptor chromophores

A class of benzo[b]phosphole-based alkynylgold(I)complexes has been synthesized and characterized.These complexes share a similar benzo-[b]phosphole ligand,in which the phosphole moiety is substituted with variousπ-conjugated units with different donor strengths,namely phenoxazinylphenyl,tris(di-tert-butylcarbazolyl)phenyl and 2,4-dimethylphenyl moieties.These phosphole-containing gold(I)complexes are found to be strongly luminescent in toluene with tunable emission maxima and possess solvatochromic behaviors,suggesting an emission of metal-perturbed intraligand charge transfer origin.Cyclic voltammetry studies reveal that the presence of gold(I)metal center strongly perturbs the electronic properties of the phosphole moiety of the resultant complexes,which can be further finetuned by the auxiliary ligand on the gold(I)center.In the resistive memory studies,devices based on these alkynylgold(I)complexes exhibit satisfactory binary memory behaviors,demonstrating low threshold voltages in narrow distributions,high durability and low misreading rates.Such performances are believed to be originated from a field-induced charge transfer of the alkynylgold(I)complexes,in which the electron-accepting phosphole-gold(I)unit plays a crucial role in stabilizing the charge transfer state and that led to the observed resistive switching and memory behavior.

A cyanostilbene-based molecule with aggregation-induced emission properties: amplified spontaneous emission, protonation effect and electroluminescence

A terpyridine-substituted cyanostilbene derivative(Z)-2-(4′-([2,2′:6′,2″-terpyridin]-4′-yl)-[1,1′-biphenyl]-4-yl)-3-phenylacrylonitrile(CNSTPy) was synthesized and characterized. The compound exhibits remarkable aggregation-induced emission phenomenon and its single crystal shows a blue emission with fluorescent efficiency as high as 45%. Based on its aggregation state behavior, multiple applications towards exploring its lasing, fluorescence switching and electroluminescence properties were realized. Amplified spontaneous emission(ASE) was observed from the crystal and verified by the variable pump strip method, with a threshold value of ～1.5 m J cm^(-2). The protonation/deprotonation processes accompanied by the formation of different molecular aggregation structure result in the distinct blue and yellow emissions. Additionally, the molecule also shows a moderate electroluminescence performance.

半竹节虫型双金属配合物制备铁铂纳米颗粒及其图案化阵列的磁存储应用（英文）

L1_0相铁铂合金纳米颗粒具有较高的磁矫顽力,其图案化阵列有望用于开发下一代磁性数据记录系统,但是单分散铁铂纳米颗粒的合成及大规模制备图案化阵列的制备仍是巨大的挑战.本文合成了一种含有铁铂的双金属配合物,配合物由刚性的共平面金属中心和柔性尾链形成半竹节虫型结构,这种特殊的分子结构有利于机械加工中分子有序排列.配合物用作单源前驱体经一步热解即可制备L1_0相铁铂合金纳米颗粒.另外,借助高效的纳米印刷技术,对配合物溶液进行压印即可制备大规模高度有序的图案化阵列,所得阵列在氩氢混合气保护下原位热解,形成规则的磁性阵列,表明这种方式制备的磁性图案可用于磁数据存储设备.