Prussian Blue analogs and transition metal K-edge XMCD: a longstanding friendship

Abstract

Prussian Blue analogs (PBAs) are well-known coordination polymers offering a wide range of properties, and their fundamental understanding requires their investigations by various techniques. One of them is transition metal (TM) K-edge X-ray Magnetic Circular Dichroism (XMCD), which is element selective, bulk sensitive and compatible with a wide range of experimental conditions. This short review presents the reciprocal investigation of PBA with TM K-edge XMCD, from the first studies demonstrating that qualitative local magnetic information could be obtained on PBA from TM K-edge XMCD until our on-going project aiming at fundamentally understanding TM K-edge XMCD thanks to PBAs as model-compounds.

Achievements in the Photomagnetic Effect of Cobalt‐Iron Prussian Blue Analogues

“…Researchers such as Hashimoto, Verdaguer, Bleuzen, and their co-workers have made some outstanding contributions to these issues. [28,29,35,36,[75][76][77] In the subsequent sections, we will expound upon some of the no- compound 3) is firstly studied. [28] Compound 1 with the lowest Fe/Co ratio contains 33% of [Fe(CN) 6 ] 3− vacancies and there are on average four N atoms and two O atoms around Co ions (CoN 4 O 2 ).…”

“…Researchers such as Hashimoto, Verdaguer, Bleuzen, and their co‐workers have made some outstanding contributions to these issues. [ 28,29,35,36,75–77 ] In the subsequent sections, we will expound upon some of the notable findings and breakthroughs achieved.…”

Interplay between transition-metal K-edge XMCD, slight structural distortions and magnetism in a series of trimetallic (CoxNi(1−x))4[Fe(CN)6]3/8 Prussian blue analogues

“…We have been developing an original experimental approach aiming at making TM K-edge XMCD a real quantitative tool for molecular chemists. [34][35][36][37][38] Our strategy, presented in previous works, [35][36][37][38] uses the versatile chemistry of PBAs exhibiting the well-known face-centered cubic (fcc) structure, the unit cell of which is shown in Fig. 1 (for p = 4 and q = 8/3) and the chemical composition per unit cell is given by A p [B(CN) 6 ] q ÁnH 2 O, where A and B are two TM ions.…”