Supramolecular adducts of mesocyclic diamines with various carboxylic acids: Charge-assisted hydrogen-bonding in molecular recognition
Aggregation of saturated mesocyclic diamine 1,4-diazacycloheptane (dach) or piperazine (pipz) and diversiform carboxylic acids with mono- or di-carboxyls yields a series of novel binary supramolecular adducts via two-point molecular recognition. All the supramolecular assemblies were obtained by sol...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-11-01
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| Series: | Journal of Saudi Chemical Society |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319610320301289 |
| _version_ | 1828496313244712960 |
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| author | Wei Guo Xiaojuan Fu Jing Chen |
| author_facet | Wei Guo Xiaojuan Fu Jing Chen |
| author_sort | Wei Guo |
| collection | DOAJ |
| description | Aggregation of saturated mesocyclic diamine 1,4-diazacycloheptane (dach) or piperazine (pipz) and diversiform carboxylic acids with mono- or di-carboxyls yields a series of novel binary supramolecular adducts via two-point molecular recognition. All the supramolecular assemblies were obtained by solvent evaporation method from different media. X-ray single-crystal diffraction analyses reveal that these supramolecular moieties present 1D chain motif, 2D flat, corrugated sheet structures and 3D CdSO4, pillar-layered networks through carboxylate-amide N–H⋯O, as well as its proton transfer form N+–H⋯O−, carboxyl head to tail O–H⋯O, and extended hydrogen-bonding interactions. Their compositions and structures were also confirmed by Fourier transform infrared (FT-IR) spectroscopy. Thermal stability of these binary crystalline adducts has been investigated by thermogravimetric analysis (TGA), suggesting similar thermal stabilities. |
| first_indexed | 2024-12-11T12:27:35Z |
| format | Article |
| id | doaj.art-77cccfdef96a4914b778e33f738c8301 |
| institution | Directory Open Access Journal |
| issn | 1319-6103 |
| language | English |
| last_indexed | 2024-12-11T12:27:35Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Saudi Chemical Society |
| spelling | doaj.art-77cccfdef96a4914b778e33f738c83012022-12-22T01:07:21ZengElsevierJournal of Saudi Chemical Society1319-61032020-11-012411885895Supramolecular adducts of mesocyclic diamines with various carboxylic acids: Charge-assisted hydrogen-bonding in molecular recognitionWei Guo0Xiaojuan Fu1Jing Chen2College of Chemistry, Tianjin Normal University, Tianjin 300387, PR China; School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR ChinaCollege of Chemistry, Tianjin Normal University, Tianjin 300387, PR ChinaCollege of Chemistry, Tianjin Normal University, Tianjin 300387, PR China; Corresponding author.Aggregation of saturated mesocyclic diamine 1,4-diazacycloheptane (dach) or piperazine (pipz) and diversiform carboxylic acids with mono- or di-carboxyls yields a series of novel binary supramolecular adducts via two-point molecular recognition. All the supramolecular assemblies were obtained by solvent evaporation method from different media. X-ray single-crystal diffraction analyses reveal that these supramolecular moieties present 1D chain motif, 2D flat, corrugated sheet structures and 3D CdSO4, pillar-layered networks through carboxylate-amide N–H⋯O, as well as its proton transfer form N+–H⋯O−, carboxyl head to tail O–H⋯O, and extended hydrogen-bonding interactions. Their compositions and structures were also confirmed by Fourier transform infrared (FT-IR) spectroscopy. Thermal stability of these binary crystalline adducts has been investigated by thermogravimetric analysis (TGA), suggesting similar thermal stabilities.http://www.sciencedirect.com/science/article/pii/S1319610320301289Mesocyclic diaminesOrganic saltsCarboxylate coformersCharge-assisted hydrogen bondsCrystal structures |
| spellingShingle | Wei Guo Xiaojuan Fu Jing Chen Supramolecular adducts of mesocyclic diamines with various carboxylic acids: Charge-assisted hydrogen-bonding in molecular recognition Journal of Saudi Chemical Society Mesocyclic diamines Organic salts Carboxylate coformers Charge-assisted hydrogen bonds Crystal structures |
| title | Supramolecular adducts of mesocyclic diamines with various carboxylic acids: Charge-assisted hydrogen-bonding in molecular recognition |
| title_full | Supramolecular adducts of mesocyclic diamines with various carboxylic acids: Charge-assisted hydrogen-bonding in molecular recognition |
| title_fullStr | Supramolecular adducts of mesocyclic diamines with various carboxylic acids: Charge-assisted hydrogen-bonding in molecular recognition |
| title_full_unstemmed | Supramolecular adducts of mesocyclic diamines with various carboxylic acids: Charge-assisted hydrogen-bonding in molecular recognition |
| title_short | Supramolecular adducts of mesocyclic diamines with various carboxylic acids: Charge-assisted hydrogen-bonding in molecular recognition |
| title_sort | supramolecular adducts of mesocyclic diamines with various carboxylic acids charge assisted hydrogen bonding in molecular recognition |
| topic | Mesocyclic diamines Organic salts Carboxylate coformers Charge-assisted hydrogen bonds Crystal structures |
| url | http://www.sciencedirect.com/science/article/pii/S1319610320301289 |
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