Salts containing different amino acids: four types of salts with the hexafluorosilicate anion

Recently, we have discovered a new class of salts containing different amino acids. In the present paper, we report crystal structures of four types ([A(1)H][A(2)H]Y, A(1)H[A(2)H···A(2)]Y, A(1)H[A(1)H···A(2)]Y and [A(1)H···A(2)] 2 Y) of salts containing a hexafluorosilicate anion (Y is SiF 6 2− ) an...

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Bibliographic Details
Published in:Structural chemistry 2023-04, Vol.34 (2), p.491-504
Main Authors: Petrosyan, Aram M., Giester, Gerald, Tonoyan, Gayane S.
Format: Article
Language:English
Subjects:
Alanine
Amino acids
Anions
Chemistry
Chemistry and Materials Science
Computer Applications in Chemistry
Crystals
Glycine
Original Research
Physical Chemistry
Proline
Structure
Theoretical and Computational Chemistry
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Summary:Recently, we have discovered a new class of salts containing different amino acids. In the present paper, we report crystal structures of four types ([A(1)H][A(2)H]Y, A(1)H[A(2)H···A(2)]Y, A(1)H[A(1)H···A(2)]Y and [A(1)H···A(2)] 2 Y) of salts containing a hexafluorosilicate anion (Y is SiF 6 2− ) and amino acids glycine, sarcosine, dimethylglycine, betaine, β -alanine, and l -proline: ( β -AlaH)(BetH)SiF 6 ·H 2 O (I), ( β -AlaH)( l -ProH)SiF 6 (II), ( β -AlaH)( l -ProH··· l -Pro)SiF 6 (III), (BetH)(BetH···Sar)SiF 6 ·H 2 O (IV), (GlyH···DMG) 2 SiF 6 (V), and (DMGH···Sar) 2 SiF 6 (VI). The O⋅⋅⋅O distances in dimeric cations ( l -ProH··· l -Pro), (BetH···Sar), (GlyH···DMG), and (DMGH···Sar) are 2.439 (3), 2.5310 (12), 2.4979 (9), and 2.4612 (19) Å in (III), (IV), (V), and (VI), respectively.
ISSN:1040-0400
1572-9001
DOI:10.1007/s11224-022-01980-6