Structure and Properties of Orthorhombic L-Arginine Formate
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- 作者：S. Haussü ; hl ; H. A. Karapetyan ; R. P. Sukiasyan ; A. M. Petrosyan
- 刊名：Crystal Growth & Design
- 出版年：2006
- 出版时间：September 2006
- 年：2006
- 卷：6
- 期：9
- 页码：2041 - 2046
- 全文大小：292K
- 年卷期：v.6,no.9(September 2006)
- ISSN：1528-7505
文摘
Single crystals of orthorhombic L-arginine formate (+(NH2)2CNH(CH2)3CH(NH3+)COO-·HCOO-) that had dimensionsof ca. 30 × 30 × 40 mm and were of optical quality were grown by controlled evaporation of aqueous solutions. An X-ray structureanalysis yielded space group P212121, a1 = 7.706(2) Å, a2 = 7.808(2) Å, a3 = 18.594(4) Å, Z = 4, and 
c = 1.308 Mg/m3 at 293K. Hydrogen bonds determine the interactions between monovalent L-arginine cations and also the interactions of these cations withformate anions. The structure is compared with that of the monoclinic polymorph. ATR FTIR and FT Raman spectra, TG, DTA,thermal expansion, and elastic and thermoelastic properties are reported.
c = 1.308 Mg/m3 at 293K. Hydrogen bonds determine the interactions between monovalent L-arginine cations and also the interactions of these cations withformate anions. The structure is compared with that of the monoclinic polymorph. ATR FTIR and FT Raman spectra, TG, DTA,thermal expansion, and elastic and thermoelastic properties are reported.