Probing Framework-Restricted Metal Axial Ligation and Spin State Patterns in a Post-Synthetically Reduced Iron-Porphyrin-Based Metal-Organic Framework

被引：28

作者：

Kucheryavy, Pavel ^{[1
]}

Lahanas, Nicole ^{[1
]}

Velasco, Ever ^{[1
]}

Sun, Cheng-Jun ^{[2
]}

Lockard, Jenny V. ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Chem, Newark, NJ 07102 USA

[2] Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2016年 / 7卷 / 07期

基金：

美国国家科学基金会;

关键词：

X-RAY-ABSORPTION; ELECTRONIC-STRUCTURE; EMISSION-SPECTROSCOPY; RESONANCE RAMAN; SPECTRA; COMPLEXES; TRANSITION; BETA; EDGE; STEREOCHEMISTRY;

D O I：

10.1021/acs.jpclett.6b00302

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An iron-porphyrin-based metal organic framework PCN-222(Fe) is investigated upon postsynthetic reduction with piperidine. Fe K-edge X-ray absorption and K beta mainline emission spectroscopy measurements reveal the local coordination geometry, oxidation, and spin state changes experienced by the Fe sites upon reaction with this axially coordinating reducing agent. Analysis and fitting of these data confirm the binding pattern predicted by a space-filling model of the structurally constrained pore environments. These results are further supported by UV vis diffuse reflectance, IR, and resonance Raman spectroscopy data.

引用

页码：1109 / 1115

页数：7

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