Janus mesophases of matter

Janus mesophases of matter
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物质的两面性中间相

DOI:
10.1080/02678292.2021.2002445
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发表时间:
2021
期刊:
影响因子:
2.2
通讯作者:
Goodby J
Goodby J
中科院分区:
化学3区
文献类型:
--
作者:
Goodby J

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在古罗马宗教和神话中,雅努斯是开始、大门、过渡、时间、二元性、门口、通道、框架和结局之神。他通常被描绘成有两张面向相反方向的脸,一张面向过去,另一张面向未来。本文是对BK Sadashiva教授在液晶科学方面的贡献以及在介晶材料设计和创造方面的新开端的致敬。在基于β-二酮的铜(II)配合物的金属介晶的研究中,Ohta和他的同事报道了第一个建立的盘状-层状相,其中板状配合物能够形成层状堆积排列,并同时堆叠成列。Casagrande等人后来制备了合成改性的珠粒,其中一个半球是疏水性的,另一个半球是亲水性的。这些颗粒被认为是两亲性固体,并被称为Janus Beads。2003年合成了具有超分子结构的Janus Mesogens,其具有一个手性半球和另一个具有近晶倾向。这些复合物、粒子和超分子被称为雅努斯,用来描述物质的结构。在这篇文章中,我们使用Janus液晶来描述一种在单一均匀相结构中结合了两种不同填充图案的材料。
In ancient Roman religion and myth,Janusis the god of beginnings, gates, transitions, time, duality, doorways, passages, frames, and endings. He is usually depicted as having two faces looking in opposite directions, one towards the past and the other towards the future. This article is dedicated to Professor BK Sadashiva for his contributions to the science of liquid crystals, and new beginnings in the design and creation of mesomorphic materials.In the studies of metallomesogens based on copper(II) complexes of β-diketones, Ohta and his colleagues reported the first-established discotic-lamellar phase, in which the board-like complexes are able to form lamellar packing arrangements, and at the same time stacking into columns. Casagrande et al. later prepared synthetically modified beads with one hemisphere being hydrophobic and the other hydrophilic. These particles were considered to be amphiphilic solids, and calledJanus Beads. SyntheticJanus Mesogenswith supermolecular architectures having one chiral nematic hemisphere and the other with smectic tendencies were made in 2003. These complexes, particles, and supermolecules, were termedJanusto describe the structure of the material. In this article we use Janus liquid crystals to describe a material that combines two different packing motifs in a single uniform phase structure.
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