1992
DOI: 10.1524/zkri.1992.198.3-4.265
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Reinvestigation of the crystal structure of diglycine hydrochloride

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Cited by 27 publications
(7 citation statements)
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“…In the ferroelectric and paraelectric structure of (glycine) 2 HNO 3 , one of the glycine molecules has the zwitterionic configuration and the other is monoprotonated [4,5]. A similar structure has been found in diglycine hydrochloride [6], hydrobromide [7], hydroiodide [8] and disarcosine hydrobromide [9]. In all the above mentioned structures the molecules are held together by a network of N-HÁ Á ÁX, N-HÁ Á ÁO and O-HÁ Á ÁO hydrogen bonds.…”
Section: Introductionmentioning
confidence: 67%
“…In the ferroelectric and paraelectric structure of (glycine) 2 HNO 3 , one of the glycine molecules has the zwitterionic configuration and the other is monoprotonated [4,5]. A similar structure has been found in diglycine hydrochloride [6], hydrobromide [7], hydroiodide [8] and disarcosine hydrobromide [9]. In all the above mentioned structures the molecules are held together by a network of N-HÁ Á ÁX, N-HÁ Á ÁO and O-HÁ Á ÁO hydrogen bonds.…”
Section: Introductionmentioning
confidence: 67%
“…In the ferroelectric and paraelectric structure of (glycine) 2 HNO 3 , one of the glycine molecules has the zwitterionic configuration and the other is monoprotonated [4,5]. A similar structure has been found in diglycine hydrochloride [6], hydrobromide [7], hydroiodide [8] and disarcosine hydrobromide [9]. In all the above-mentioned structures, the molecules are held together by a network of N-H?X, N-H?O and O-H?O hydrogen bonds.…”
Section: Introductionmentioning
confidence: 72%
“…The dubious nature of the crystal can be evidenced from the reported infrared (IR) spectrum in the title paper which is identical to that of L-alanine [7,8]. As it is well known that glycine (or L-alanine) reacts with aqueous HCl to form glycine hydrochloride [9] diglycine hydrochloride [10] and L-alanine hydrochloride [11], we reinvestigated the reported crystal growth of a so-called glycyl-L-alanine hydrochloride in order to identify its exact nature.…”
mentioning
confidence: 70%
“…In contrast, the crystals of (2) obtained using a very slight excess of HCl exhibited an infrared spectrum (Supplementary material Fig. S1), which matched perfectly with that of diglycine hydrochloride [10]. Since IR method was used as a characterization tool for correct product identification, no band assignments are given.…”
mentioning
confidence: 94%