24小时热门版块排行榜

返回列表

【奖励】本帖被评价3次，作者wangfeng9802增加金币 2 个

当前主题已经存档。

wangfeng9802

银虫 (小有名气)

应助: 0 (幼儿园)
金币: 216.4
帖子: 235
在线: 158.1小时
虫号: 495156

[资源] 晶体做成这种结果很牛吧

做晶体的虫子可以学学。

Magnetic and Optical Bistability Driven by Thermally and
Photoinduced Intramolecular Electron Transfer in a Molecular
Cobalt-Iron Prussian Blue Analogue
Dongfeng Li,† Rodolphe Cle´ rac,*,‡ Olivier Roubeau,‡ Etienne Harte´ ,‡
Corine Mathonie` re,*,| Re´my Le Bris,| and Stephen M. Holmes*,†
Abstract: A soluble molecular analogue of photoresponsive Co/Fe Prussian blues is described within this
report. As judged via a variety of spectroscopic, magnetic, and crystallographic methods, electron transfer
within the octanuclear complex (below 250 K) converts paramagnetic red crystals into green diamagnetic
ones. The color and magnetic changes are associated with the transformation of FeIII
LS-CN-CoII
HS units
into FeII
LS-CN-CoIII
LS fragments in manner that is identical to that found for the An[Co(OH2)(6-6m)][Fe(CN)6]mâxH2O
(An ) alkali metal cation) family of three-dimensional Prussian blues. Moreover, this intramolecular electron
transfer can be quantitatively circumvented via rapid thermal quenching and reversed via simple white
light irradiation at low temperatures. Remarkably the data suggests that thermally or photoinduced
paramagnetic metastable phases are identical and exhibit long relaxation times that approach 10 years at
120 K.
[search]晶体[/search]

回复此楼