Formula: C10H22N2O2In 2017 ,《Comparative Structural Studies of Four Homologous Thioamidic Unclosed Crytpands: Self-Encapsulation of Lariat Arm, Odd-Even Effects, Anomalously Short S···S Chalcogen Bonding, and More》 was published in Crystal Growth & Design. The article was written by Dabrowa, Kajetan; Ceborska, Magdalena; Pawlak, Marcin; Jurczak, Janusz. The article contains the following contents:
Unclosed cryptands (UCs) 4a-d containing flexible (CH2)n spacers (n = 2-5) and a fixed p-nitrophenyl thioamide substituent (lariat arm) were synthesized and characterized by single crystal X-ray anal. Comparative anal. of their crystal structures provided an opportunity to recognize that conformation of 4a-d and occurrence of lattice solvent strictly depend on the length and parity of aliphatic linkers. Namely, the degree of self-inclusion of the lariat arm within the macrocyclic cavity was found to increase with greater elongation of the CH2 spacer. Odd-membered UCs (4b and 4d) showed a tendency to crystallize without lattice solvent, while even-membered UCs (4a and 4c) crystallized as various solvates. For two solvates of UC 4c anomalously short and highly directional C=S···S=C chalcogen interactions (dS···S = 3.21-3.35 Å) were observed between adjacent UC mols., forming a dimeric cube-like supramol. assembly. Packing of dimers and the length of homo-chalcogen interaction were affected by lattice solvent. Evaluation of data on C=S···S=C contacts retrieved from Cambridge Structural Database suggests that a precisely positioned external H-bond donor (NH or water) is important for stabilization of this type of noncovalent interaction.tert-Butyl (5-aminopentyl)carbamate(cas: 51644-96-3Formula: C10H22N2O2) was used in this study.
Some of the reported applications of tert-Butyl (5-aminopentyl)carbamate(cas: 51644-96-3) include: synthesis of of a supermacrocycle that self-assemble to form organic nanotubes., preparation of water-soluble unsymmetrical sulforhodamine fluorophores from monobrominated sulfoxanthene dye, synthesis of functionalized porphyrins as biocompatible carrier system for photodynamic therapy (PDT).Formula: C10H22N2O2
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