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Valdez N, Nagel E, Redline E, Rodriguez M, Staiger C, Dugger J, Foster J. Synthesis and crystal structure of 2,9-di-amino-5,6,11,12-tetra-hydro-dibenzo[ a, e]cyclo-octene. Acta Crystallogr E Crystallogr Commun 2024; 80:645-648. [PMID: 38845703 PMCID: PMC11151320 DOI: 10.1107/s2056989024004468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 05/13/2024] [Indexed: 06/09/2024]
Abstract
The cis- form of di-amino-dibenzo-cyclo-octane (DADBCO, C16H18N2) is of inter-est as a negative coefficient of thermal expansion (CTE) material. The crystal structure was determined through single-crystal X-ray diffraction at 100 K and is presented herein.
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Affiliation(s)
- Nichole Valdez
- Sandia National Laboratories, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Eric Nagel
- Sandia National Laboratories, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Erica Redline
- Sandia National Laboratories, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Mark Rodriguez
- Sandia National Laboratories, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Chad Staiger
- Sandia National Laboratories, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Jason Dugger
- Sandia National Laboratories, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Jeffrey Foster
- Oak Ridge National Laboratory, 5200 1 Bethel Valley Rd., Oak Ridge, Tennessee 37831, USA
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Spaller W, Lu J, Stokes B. Tetrahydroxydiboron‐Mediated Palladium‐Catalyzed Deoxygenative Transfer Hydrogenation of Aryl Ketones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Xu R, Abune L, Davis B, Ouyang L, Zhang G, Wang Y, Zhe J. Ultrasensitive detection of small biomolecules using aptamer-based molecular recognition and nanoparticle counting. Biosens Bioelectron 2022; 203:114023. [DOI: 10.1016/j.bios.2022.114023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 01/12/2023]
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Mamane V, Weiss R, Cornaton Y, Khartabil H, Groslambert L, Hénon E, Pale P, Djukic JP. Deciphering the Role of Noncovalent Interactions in the Conformations of Dibenzo‐1,5‐dichalcogenocines. Chempluschem 2022; 87:e202100518. [DOI: 10.1002/cplu.202100518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/03/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Victor Mamane
- University of Strasbourg: Universite de Strasbourg Institut of Chemistry 1 Rue Blaise Pascal 67008 Strasbourg FRANCE
| | - Robin Weiss
- Université de Strasbourg: Universite de Strasbourg Institut de Chimie de Strasbourg FRANCE
| | - Yann Cornaton
- Université de Strasbourg: Universite de Strasbourg Institut de Chimie de Strasbroug FRANCE
| | - Hassan Khartabil
- Université de Reims Champagne-Ardenne: Universite de Reims Champagne-Ardenne Institut de Chimie Moléculaire FRANCE
| | - Loïc Groslambert
- Universite de Strasbourg Institut de Chimie de Strasbourg FRANCE
| | - Eric Hénon
- Universite de Reims Champagne-Ardenne Institut de Chimie Moléculaire FRANCE
| | - Patrick Pale
- Universite de Strasbourg Institut de Cimie de Strasbourg FRANCE
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Leveille M, Shen X, Fu W, Jin K, Acerce M, Wang C, Bustamante J, Casas AM, Feng Y, Ge N, Hirst LS, Ghosh S, Lu JQ. Directional, Low-Energy Driven Thermal Actuating Bilayer Enabled by Coordinated Submolecular Switching. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102077. [PMID: 34687166 PMCID: PMC8655216 DOI: 10.1002/advs.202102077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/29/2021] [Indexed: 05/29/2023]
Abstract
The authors reveal a thermal actuating bilayer that undergoes reversible deformation in response to low-energy thermal stimuli, for example, a few degrees of temperature increase. It is made of an aligned carbon nanotube (CNT) sheet covalently connected to a polymer layer in which dibenzocycloocta-1,5-diene (DBCOD) actuating units are oriented parallel to CNTs. Upon exposure to low-energy thermal stimulation, coordinated submolecular-level conformational changes of DBCODs result in macroscopic thermal contraction. This unique thermal contraction offers distinct advantages. It's inherently fast, repeatable, low-energy driven, and medium independent. The covalent interface and reversible nature of the conformational change bestow this bilayer with excellent repeatability, up to at least 70 000 cycles. Unlike conventional CNT bilayer systems, this system can achieve high precision actuation readily and can be scaled down to nanoscale. A new platform made of poly(vinylidene fluoride) (PVDF) in tandem with the bilayer can harvest low-grade thermal energy and convert it into electricity. The platform produces 86 times greater energy than PVDF alone upon exposure to 6 °C thermal fluctuations above room temperature. This platform provides a pathway to low-grade thermal energy harvesting. It also enables low-energy driven thermal artificial robotics, ultrasensitive thermal sensors, and remote controlled near infrared (NIR) driven actuators.
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Affiliation(s)
| | - Xinyuan Shen
- Materials Science and EngineeringUniversity of California, MercedMerced95343USA
- Macromolecular ScienceFudan UniversityShanghai200433P. R. China
| | - Wenxin Fu
- Materials Science and EngineeringUniversity of California, MercedMerced95343USA
| | - Ke Jin
- Macromolecular ScienceFudan UniversityShanghai200433P. R. China
| | - Muharrem Acerce
- Materials Science and EngineeringUniversity of California, MercedMerced95343USA
| | - Changchun Wang
- Macromolecular ScienceFudan UniversityShanghai200433P. R. China
| | | | | | - Yuan Feng
- ChemistryUniversity of California, IrvineIrvine92697USA
| | - Nien‐Hui Ge
- ChemistryUniversity of California, IrvineIrvine92697USA
| | | | | | - Jennifer Qing Lu
- PhysicsUniversity of California, MercedMerced95343USA
- Materials Science and EngineeringUniversity of California, MercedMerced95343USA
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Foster JC, Staiger CL, Dugger JW, Redline EM. Tuning Epoxy Thermomechanics via Thermal Isomerization: A Route to Negative Coefficient of Thermal Expansion Materials. ACS Macro Lett 2021; 10:940-944. [PMID: 35549200 DOI: 10.1021/acsmacrolett.1c00312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fine control over the thermal expansion and contraction behavior of polymer materials is challenging. Most polymers have large coefficients of thermal expansion (CTEs), which preclude long performance lifetimes of composite materials. Herein, we report the design and synthesis of epoxy thermosets with low CTE values below their Tg and large contraction behavior above Tg by incorporating thermally contractile dibenzocyclooctane (DBCO) motifs within the thermoset network. This atypical thermomechanical behavior was rationalized in terms of a twist-boat to chair conformational equilibrium of the DBCO linkages. We anticipate these findings to be generally useful in the preparation of materials with designed CTE values.
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Affiliation(s)
- Jeffrey C. Foster
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Chad L. Staiger
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Jason W. Dugger
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Erica M. Redline
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
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Perić B, Kokan Z, Kirin SI. Induction of Λ-helicity in a zinc complex with an alanine-appended aminopyridine ligand. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2021; 77:449-457. [PMID: 34350842 DOI: 10.1107/s2053229621006471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/21/2021] [Indexed: 11/10/2022]
Abstract
The crystal structure of tris[dimethyl 5-({1-[(pyridin-2-yl-κN)carbamoyl-κO]ethyl}carbamoyl)benzene-1,3-dicarboxylate]zinc(II) dinitrate acetonitrile trisolvate, [Zn(C19H19N3O6)3](NO3)2·3CH3CN or [Zn(L)3](NO3)2·3CH3CN, (1), has been determined by single-crystal X-ray diffraction. The neutral ligand L coordinates to the Zn2+ cation in a bidentate fashion via the pyridine N atom and an amide O atom, forming a six-membered chelate ring. The Λ-helical chirality of the Zn2+ coordination sphere is induced by pendant L-alanine residues through stacking interactions between the arene groups of two coordinated ligands, assisted by a hydrogen bond between amide groups bonded to the stacked arene rings. The third ligand is coordinated to the Zn2+ cation by the same six-membered chelate ring, but in the opposite direction with respect to the analogous chelate rings of the first two coordinated ligands. Besides ionic interactions between [ZnL3]2+ complexes and NO3- anions, several types of hydrogen bonds and intermolecular stacking interactions contribute to the stability of the solid-state phase.
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Affiliation(s)
- Berislav Perić
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Zoran Kokan
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Srećko I Kirin
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
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Ishiwari F, Miyake S, Inoue K, Hirose K, Fukushima T, Saeki A. Two‐step Conformational Control of a Dibenzo Diazacyclooctane Derivative by Stepwise Protonation. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fumitaka Ishiwari
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka 565-0871 Suita Osaka Japan
- Frontier Research Base for Global Young Researchers Graduate School of Engineering Osaka University 565-0871 Suita Japan
| | - Sayuri Miyake
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka 565-0871 Suita Osaka Japan
| | - Keiki Inoue
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Meguro City, Midori-ku 226-8503 Yokohama Japan
| | - Keiji Hirose
- Graduate School of Engineering Science Osaka University 1-3 Machikaneyama 560-8531 Toyonaka Osaka Japan
| | - Takanori Fukushima
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Meguro City, Midori-ku 226-8503 Yokohama Japan
| | - Akinori Saeki
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka 565-0871 Suita Osaka Japan
- Innovative Catalysis Science Division Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI) Osaka University 1-1 Yamadaoka 565-0871 Suita Osaka Japan
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