structural study
Nina Podjed (Avtor), Barbara Modec (Avtor)

Povzetek

Three amino alcohols, 3-amino-1-propanol (abbreviated as 3a1pOH), 2-amino-1-butanol (2a1bOH), and 2-amino-2-methyl-1-propanol (2a2m1pOH), were reacted with quinoline-2-carboxylic acid, known as quinaldinic acid. This combination yielded three salts, (3a1pOHH)quin (1, 3a1pOHH$^+$ = protonated 3-amino-1-propanol, quin$^−$ = anion of quinaldinic acid), (2a1bOHH)quin (2, 2a1bOHH$^+$ = protonated 2-amino-1-butanol), and (2a2m1pOHH)quin (3, 2a2m1pOHH$^+$ = protonated 2-amino-2-methyl-1-propanol). The 2-amino-1-butanol and 2-amino-2-methyl-1-propanol systems produced two polymorphs each, labeled 2a/2b and 3a/3b, respectively. The compounds were characterized by X-ray structure analysis on single-crystal. The crystal structures of all consisted of protonated amino alcohols with NH$_3$$^+$ moiety and quinaldinate anions with carboxylate moiety. The used amino alcohols contained one OH and one NH$_2$ functional group, both prone to participate in hydrogen bonding. Therefore, similar connectivity patterns were expected. This proved to be true to some extent as all structures contained the NH$_3$$^+$···$^−$OOC heterosynthon. Nevertheless, different hydrogen bonding and π···π stacking interactions were observed, leading to distinct connectivity motifs. The largest difference in hydrogen bonding occurred between polymorphs 3a and 3b, as they had only one heterosynton in common.

Ključne besede

vodikova vez;sinton;kristalna struktura;polimorfizem;amino alkoholi;kinaldinska kislina;hydrogen bond;synthon;crystal structure;polymorphism;amino alcohols;quinaldinic acid;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK: 544.142.4
COBISS: 96752899 Povezava se bo odprla v novem oknu
ISSN: 1420-3049
Št. ogledov: 83
Št. prenosov: 26
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: vodikova vez;sinton;kristalna struktura;polimorfizem;amino alkoholi;kinaldinska kislina;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-12
Letnik: ǂVol. ǂ27
Zvezek: ǂiss. ǂ3
Čas izdaje: Feb. 2022
DOI: 10.3390/molecules27030996
ID: 15634907