2013年11月4日
Reversible chemisorption of sulfur dioxide in a spin crossover porous coordination polymer
Inorganic Chemistry
- 巻
- 52
- 号
- 21
- 開始ページ
- 12777
- 終了ページ
- 12783
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/ic4020477
The chemisorption of sulfur dioxide (SO2) on the Hofmann-like spin crossover porous coordination polymer (SCO-PCP) {Fe(pz)[Pt(CN) 4]} has been investigated at room temperature. Thermal analysis and adsorption-desorption isotherms showed that ca. 1 mol of SO2 per mol of {Fe(pz)[Pt(CN)4]} was retained in the pores. Nevertheless, the SO2 was loosely attached to the walls of the host network and completely released in 24 h at 298 K. Single crystals of {Fe(pz)[Pt(CN) 4]}·nSO2 (n ≈ 0.25) were grown in water solutions saturated with SO2, and its crystal structure was analyzed at 120 K. The SO2 molecule is coordinated to the PtII ion through the sulfur atom ion, Pt-S = 2.585(4) Å. This coordination slightly stabilizes the low-spin state of the FeII ions shifting the critical temperatures of the spin transition by 8-12 K. DFT calculations have been performed to rationalize these observations. © 2013 American Chemical Society.
- ID情報
-
- DOI : 10.1021/ic4020477
- ISSN : 0020-1669
- ISSN : 1520-510X
- PubMed ID : 24124923
- SCOPUS ID : 84887035410