Crystalline products of CO2 capture by piperazine aqueous solutions

被引：9

作者：

Fonari, Marina S. ^{[1
,2
]}

Antal, Sofia ^{[1
]}

Castaneda, Raul ^{[1
]}

Ordonez, Carlos ^{[1
]}

Timofeeva, Tatiana V. ^{[1
,3
]}

机构：

[1] New Mexico Highlands Univ, Dept Biol & Chem, Las Vegas, NM 87701 USA

[2] Moldavian Acad Sci, Inst Appl Phys, Acad Str,5 MD2028, Kishinev, Moldova

[3] ITMO Univ, 49 Kronverksky Pr, St Petersburg 197101, Russia

来源：

CRYSTENGCOMM | 2016年 / 18卷 / 33期

基金：

美国国家科学基金会;

关键词：

CARBON-DIOXIDE ABSORPTION; SELF-DERIVATIVE SALTS; POTASSIUM CARBONATE; MOLECULAR-STRUCTURE; SOLID-STATE; KINETICS; AMINES; WATER; METHYLDIETHANOLAMINE; SOLUBILITY;

D O I：

10.1039/c6ce01083k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Crystalline products of the reactions of piperazine (PZ) solutions with CO2 sourced from the air and dry ice represent three carboxamides of piperazine, piperazinium carboxamide trihydrate (PZH(+)CO(2)(-))center dot 3H(2)O, piperazinium piperazine-4-carboxamide (PZH(+))(PZCO(2)(-)), and bis-(piperazinium) piperazine-1,4-bis(carboxamide) trihydrate (PZH(+))(2)(PZ(CO2-)(2))center dot 3H(2)O, whose crystal structures were revealed by single crystal X-ray diffraction studies. The interplay of hydrogen bonding affords the crystal stability of these hydrolytically labile piperazine carbamate derivatives which have not been observed in the solid state before. The crystal structure of piperazine monohydrate PZ center dot H2O is reported as well.

引用

页码：6282 / 6289

页数：8

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