1
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Xiao H, Hu WY, Wang Q, Zeng CH, Li HH, Liu H, Du ZY, He CT. Molecular rotators anchored on a rod-like anionic coordination polymer adhered by charge-assisted hydrogen bonds. Phys Chem Chem Phys 2024; 26:3974-3980. [PMID: 38221866 DOI: 10.1039/d3cp05597c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
On the basis of variable-temperature single-crystal X-ray diffraction, variable-temperature/frequency dielectric analysis, variable-temperature solid-state nuclear magnetic resonance spectroscopy, and molecular dynamics simulations, here we present a new model of crystalline supramolecular rotor (i-PrNHMe2)[CdBr3], where a conformationally flexible near-spherical (i-PrNHMe2)+ cation functions as a rotator and a rod-like anionic coordination polymer {[CdBr3]-}∞ acts as the stator, and the adhesion of them is realized by charge-assisted hydrogen bonds.
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Affiliation(s)
- Hui Xiao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Wei-Yu Hu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Qing Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Cheng-Hui Zeng
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Hao-Hong Li
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Haiming Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Zi-Yi Du
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Chun-Ting He
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
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2
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Hidalgo N, de la Cruz-Martínez F, Martín MT, Nicasio MC, Campos J. A highly constrained cis-dihydride platinum complex trapped by cooperative gold/platinum dihydrogen activation. Chem Commun (Camb) 2022; 58:9144-9147. [PMID: 35894238 PMCID: PMC9367266 DOI: 10.1039/d2cc03089f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of Au(i)/Pt(0) combinations that behave as bimetallic frustrated Lewis pairs activates dihydrogen in a cooperative manner. The steric bulk of the terphenyl phosphines that stabilize both fragments allows for the isolation of a rather unique and highly distorted cis-type dihydride platinum(ii) structure. We have trapped a unique square planar cis-dihydride structure, of relevance for many catalytic transformations, through a bimetallic FLP-based approach.![]()
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Affiliation(s)
- Nereida Hidalgo
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, Sevilla 41092, Spain.
| | - Felipe de la Cruz-Martínez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, Sevilla 41092, Spain.
| | - M Trinidad Martín
- Departamento de Química Inorgánica, Universidad de Sevilla, Aptdo 1203, Sevilla 41071, Spain.
| | - M Carmen Nicasio
- Departamento de Química Inorgánica, Universidad de Sevilla, Aptdo 1203, Sevilla 41071, Spain.
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, Sevilla 41092, Spain.
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3
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Li W, Liu D, Hu W, Liu Q, Du Z, He C, Zhang W, Chen X. A Crystalline Supramolecular Rotor Functioned by Dual Ultrasmall Polar Rotators. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200212] [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]
Affiliation(s)
- Wang Li
- College of Chemistry and Chemical Engineering, MOE Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry Jiangxi Normal University Nanchang 330022 China
| | - De‐Xuan Liu
- School of Chemistry, MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat‐Sen University Guangzhou 510275 China
| | - Wei‐Yu Hu
- College of Chemistry and Chemical Engineering, MOE Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry Jiangxi Normal University Nanchang 330022 China
| | - Qing‐Yan Liu
- College of Chemistry and Chemical Engineering, MOE Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry Jiangxi Normal University Nanchang 330022 China
| | - Zi‐Yi Du
- College of Chemistry and Chemical Engineering, MOE Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry Jiangxi Normal University Nanchang 330022 China
| | - Chun‐Ting He
- College of Chemistry and Chemical Engineering, MOE Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry Jiangxi Normal University Nanchang 330022 China
| | - Wei‐Xiong Zhang
- School of Chemistry, MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat‐Sen University Guangzhou 510275 China
| | - Xiao‐Ming Chen
- School of Chemistry, MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat‐Sen University Guangzhou 510275 China
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4
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Joshi H, Meena N, Kumar S, Shinde VN, Reddy SR, Bhuvanesh N, Kumar A. Bulky selenium ligand stabilized trans-palladium dichloride complexes as catalyst for silver-free decarboxylative coupling of coumarin-3-carboxylic acids. Chem Asian J 2021; 17:e202101199. [PMID: 34919329 DOI: 10.1002/asia.202101199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/14/2021] [Indexed: 11/06/2022]
Abstract
This report describes synthesis of three new trans -palladium dichloride complexes of bulky selenium ligands. These complexes possess a Cl-Pd-Cl rotor spoke attached to a Se-Pd-Se axle. The new ligands and palladium complexes ( C1 - C3 ) were characterized with the help of NMR, HRMS, UV-Vis., IR, and elemental analysis. The single crystal structure of metal complex C2 confirmed a square planer geometry of complex with trans -orientation. The X-ray structure revealed intramolecular secondary interactions (SeCH---Cl) between chlorine of PdCl 2 and CH 2 proton of selenium ligand. Variable temperature NMR data shows coalescence of diastereotopic protons, which indicates pyramidal inversion of selenium atom at elevated temperature. The relaxed potential energy scan of C2 suggests a rotational barrier of ~12.5 kcal/mol for rotation of chlorine atom through Cl-Pd-Cl rotor. The complex C3 possess dual intramolecular secondary interactions (OCH 2 ---Cl and SeCH 2 ---Cl) with stator ligand. Molecular rotor C2 was found to be most efficient catalyst for the decarboxylative Heck-coupling under mild reaction conditions. The protocol is applicable to a broad range of substrates with large functional group tolerance and low catalyst loading (2.5 mol %). The mechanism of decarboxylative Heck-coupling reaction was investigated through experimental and computational studies. Importantly the reaction works under silver-free conditions which reduces the cost of overall protocol. Further, the catalyst also worked for decarboxylative arylation and decarboxylative Suzuki-Miyaura coupling reactions with good yields of the coupled products.
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Affiliation(s)
- Hemant Joshi
- Central University of Rajasthan, Ajmer, Chemistry, Department of Chemistry, Central University of Rajasthan, 305817, Bandarsindri, Ajmer, INDIA
| | - Neha Meena
- BITS Pilani: Birla Institute of Technology and Science, Chemistry, INDIA
| | - Sunil Kumar
- Central University of Rajasthan, Chemistry, INDIA
| | - Vikki N Shinde
- BITS: Birla Institute of Technology and Science Pilani, Chemistry, INDIA
| | | | - Nattamai Bhuvanesh
- Texas A&M University College Station: Texas A&M University, Chemistry, UNITED STATES
| | - Anil Kumar
- BITS: Birla Institute of Technology and Science Pilani, Chemistry, INDIA
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5
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Molaaghaei T, Kalateh K, Najafpour J, Ahmadi R. Theoretical investigation of the structural and electronic properties of molecular machine based on phenylene and trityl. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1016/j.sajce.2021.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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6
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Maier S, Cronin SP, Vu Dinh MA, Li Z, Dyballa M, Nowakowski M, Bauer M, Estes DP. Immobilized Platinum Hydride Species as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sarah Maier
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Steve P. Cronin
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Manh-Anh Vu Dinh
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Zheng Li
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Michael Dyballa
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Michal Nowakowski
- Department of Chemistry, University of Paderborn, Warburger Straße 100, Paderborn D-33098, Germany
| | - Matthias Bauer
- Department of Chemistry, University of Paderborn, Warburger Straße 100, Paderborn D-33098, Germany
| | - Deven P. Estes
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
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7
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Ehnbom A, Gladysz JA. Gyroscopes and the Chemical Literature, 2002–2020: Approaches to a Nascent Family of Molecular Devices. Chem Rev 2021; 121:3701-3750. [DOI: 10.1021/acs.chemrev.0c01001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andreas Ehnbom
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
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8
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Meena N, Sharma S, Bhatt R, Shinde VN, Sunda AP, Bhuvanesh N, Kumar A, Joshi H. A selenium-coordinated palladium(ii) trans-dichloride molecular rotor as a catalyst for site-selective annulation of 2-arylimidazo[1,2-a]pyridines. Chem Commun (Camb) 2020; 56:10223-10226. [PMID: 32749408 DOI: 10.1039/d0cc03599h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This report describes the synthesis of a new class of secondary interaction (SeCHCl)-controlled molecular rotor having a Cl-Pd-Cl rotor spoke attached onto a Se-Pd-Se axle. NMR data acquired at various temperatures established ΔG/ΔG values of 15.5 and 17.2 kcal mol-1 for a roughly 4.5 Å-long rotor. The molecular rotor showed excellent catalytic activity with reverse regioselectivity for annulation of 2-arylimidazo[1,2-a]pyridines (yields: ∼53-78%) with only 1.5 mol% catalyst loading.
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Affiliation(s)
- Neha Meena
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Campus, Pilani 333031, India.
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9
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Bakhmutov VI, Elliott DW, Contreras-Ramirez A, Clearfield A, Zhou HC. On Librational and Rotational Motions of Aromatic Rings in Layered Sn(IV) and Zr(IV) Phosphonate Materials: A Variable-Temperature 13C, 31P Solid-State NMR Study. J Phys Chem Lett 2020; 11:4958-4961. [PMID: 32496774 DOI: 10.1021/acs.jpclett.0c01173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
According to the solid-state 13C, 31P NMR study and 13C chemical shift anisotropy (CSA) measurements, aromatic rings in the layered metal(IV) phosphonate materials behave as low-energy rotors at rotation activation energy, Eact, of 1.4-3.0 kcal/mol. The rotational mechanism consists of 180° flips and librations around C(1)-C(4) axis. The amplitude of the librations, added to the flips, grows with temperature, shifting the reorientations toward rotational diffusion at high temperatures.
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Affiliation(s)
- Vladimir I Bakhmutov
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Douglas W Elliott
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Aida Contreras-Ramirez
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Abraham Clearfield
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Hong-Cai Zhou
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
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10
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Colin-Molina A, Jellen MJ, García-Quezada E, Cifuentes-Quintal ME, Murillo F, Barroso J, Pérez-Estrada S, Toscano RA, Merino G, Rodríguez-Molina B. Origin of the isotropic motion in crystalline molecular rotors with carbazole stators. Chem Sci 2019; 10:4422-4429. [PMID: 31057769 PMCID: PMC6482440 DOI: 10.1039/c8sc04398a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 03/14/2019] [Indexed: 12/23/2022] Open
Abstract
Herein we report two crystalline molecular rotors 1 and 4 that show extremely narrow signals in deuterium solid-state NMR spectroscopy. Although this line shape is typically associated with fast-moving molecular components, our VT 2H NMR experiments, along with X-ray diffraction analyses and periodic DFT computations show that this spectroscopic feature can also be originated from low-frequency intramolecular rotations of the central phenylene with a cone angle of 54.7° that is attained by the cooperative motion of the entire structure that distorts the molecular axis to rotation. In contrast, two isomeric structures (2 and 3) do not show a noticeable intramolecular rotation, because their crystallographic arrays showed very restricting close contacts. Our findings clearly indicate that the multiple components and phase transitions in crystalline molecular machines can work in concert to achieve the desired motion.
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Affiliation(s)
- Abraham Colin-Molina
- Instituto de Química , Universidad Nacional Autónoma de México , Circuito Exterior , Ciudad Universitaria , Ciudad de México , 04510 , Mexico .
| | - Marcus J Jellen
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , USA
| | - Eduardo García-Quezada
- Instituto de Química , Universidad Nacional Autónoma de México , Circuito Exterior , Ciudad Universitaria , Ciudad de México , 04510 , Mexico .
| | - Miguel Eduardo Cifuentes-Quintal
- Departamento de Física Aplicada , Centro de Investigación y de Estudios Avanzados , Unidad Mérida. Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex , Mérida , 97310 , Yuc. , Mexico .
| | - Fernando Murillo
- Departamento de Física Aplicada , Centro de Investigación y de Estudios Avanzados , Unidad Mérida. Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex , Mérida , 97310 , Yuc. , Mexico .
| | - Jorge Barroso
- Departamento de Física Aplicada , Centro de Investigación y de Estudios Avanzados , Unidad Mérida. Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex , Mérida , 97310 , Yuc. , Mexico .
| | - Salvador Pérez-Estrada
- Área Académica de Química , Centro de Investigaciones Químicas , Universidad Autónoma del Estado de Hidalgo , km 4.5 Carretera Pachuca-Tulancingo, Ciudad del Conocimiento , Mineral de la Reforma , Hidalgo 42184 , Mexico
| | - Rubén A Toscano
- Instituto de Química , Universidad Nacional Autónoma de México , Circuito Exterior , Ciudad Universitaria , Ciudad de México , 04510 , Mexico .
| | - Gabriel Merino
- Departamento de Física Aplicada , Centro de Investigación y de Estudios Avanzados , Unidad Mérida. Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex , Mérida , 97310 , Yuc. , Mexico .
| | - Braulio Rodríguez-Molina
- Instituto de Química , Universidad Nacional Autónoma de México , Circuito Exterior , Ciudad Universitaria , Ciudad de México , 04510 , Mexico .
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11
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Ghosh A, Paul I, Saha S, Paululat T, Schmittel M. Machine Metathesis: Thermal and Catalyzed Exchange of Piston Rods in Multicomponent Nanorotor/Nanoslider Ensemble. Org Lett 2018; 20:7973-7976. [PMID: 30525699 DOI: 10.1021/acs.orglett.8b03541] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Three-component nanorotor R1 ( k298 = 80 kHz) and two-component slider-on-deck DS2 ( k298 = 440 kHz) were prepared from rotator S1 and stator [Cu3(1)]3+ and from S2 and deck D, respectively. Mixing of R1 with DS2 leads to clean metathesis, furnishing the slower nanodevices R2 ( k298 = 29.6 kHz) and DS1 ( k298 = 32.2 kHz). Exchange of the piston rods S1 and S2 is completed within 22 min (uncatalyzed) or 3 min (catalyzed) at 298 K.
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Affiliation(s)
- Amit Ghosh
- Center of Micro- and Nanochemistry and Engineering , University of Siegen, Organische Chemie I , Adolf-Reichwein-Str. 2 , D-57068 Siegen , Germany
| | - Indrajit Paul
- Center of Micro- and Nanochemistry and Engineering , University of Siegen, Organische Chemie I , Adolf-Reichwein-Str. 2 , D-57068 Siegen , Germany
| | - Suchismita Saha
- Center of Micro- and Nanochemistry and Engineering , University of Siegen, Organische Chemie I , Adolf-Reichwein-Str. 2 , D-57068 Siegen , Germany
| | - Thomas Paululat
- University of Siegen, Organische Chemie II , Adolf-Reichwein-Str. 2 , D-57068 Siegen , Germany
| | - Michael Schmittel
- Center of Micro- and Nanochemistry and Engineering , University of Siegen, Organische Chemie I , Adolf-Reichwein-Str. 2 , D-57068 Siegen , Germany
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12
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Abstract
Despite having significant applications in building nanomachines, molecular rotors with the rotational speed modulations to multiple stages in a wide range of frequency have not yet been well established. Here, we report the discovery of a stimuli-responsive molecular rotor, the rotational speed of which in the slow-to-fast range could be modulated to at least four stages triggered by acid/base and metal cations. The rotor itself rotates rapidly at ambient or elevated temperature but displays a restricted rotation after deprotonation due to the produced intramolecular electrostatic repulsion. Subsequent addition of Li+ or Na+ cations introduces an electrostatic bridge to stabilize the transition state of the deprotonated rotor, thus giving a cation-radius-dependent acceleration of the rotation to render the rotor running at a mid-speed. All the stimuli are highly reversible. Our studies provide a conceptual approach for constructing multistage rotational-speed-changing molecular rotors, and further, the practical nanomachines. Molecular rotors with rotational speed modulation have not yet been well established. Here, the authors report a pH and metal cation triggered molecular rotor, which allows for a four stage speed modulation in the slow-to-fast frequency range.
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13
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Joshi H, Kharel S, Ehnbom A, Skopek K, Hess GD, Fiedler T, Hampel F, Bhuvanesh N, Gladysz JA. Three-Fold Intramolecular Ring Closing Alkene Metatheses of Square Planar Complexes with cis Phosphorus Donor Ligands P(X(CH2)mCH═CH2)3 (X = −, m = 5–10; X = O, m = 3–5): Syntheses, Structures, and Thermal Properties of Macrocyclic Dibridgehead Diphosphorus Complexes. J Am Chem Soc 2018; 140:8463-8478. [DOI: 10.1021/jacs.8b02846] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hemant Joshi
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
| | - Sugam Kharel
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
| | - Andreas Ehnbom
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
| | - Katrin Skopek
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - Gisela D. Hess
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - Tobias Fiedler
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
| | - Frank Hampel
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
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14
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Hess GD, Fiedler T, Hampel F, Gladysz JA. Octahedral Gyroscope-like Molecules Consisting of Rhenium Rotators within Cage-like Dibridgehead Diphosphine Stators: Syntheses, Substitution Reactions, Structures, and Dynamic Properties. Inorg Chem 2017; 56:7454-7469. [DOI: 10.1021/acs.inorgchem.7b00909] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Gisela D. Hess
- Institut
für Organische Chemie and Interdisciplinary Center for Molecular
Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - Tobias Fiedler
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
| | - Frank Hampel
- Institut
für Organische Chemie and Interdisciplinary Center for Molecular
Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
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15
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Marchetti A, Chen J, Pang Z, Li S, Ling D, Deng F, Kong X. Understanding Surface and Interfacial Chemistry in Functional Nanomaterials via Solid-State NMR. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605895. [PMID: 28247966 DOI: 10.1002/adma.201605895] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/26/2016] [Indexed: 05/24/2023]
Abstract
Surface and interfacial chemistry is of fundamental importance in functional nanomaterials applied in catalysis, energy storage and conversion, medicine, and other nanotechnologies. It has been a perpetual challenge for the scientific community to get an accurate and comprehensive picture of the structures, dynamics, and interactions at interfaces. Here, some recent examples in the major disciplines of nanomaterials are selected (e.g., nanoporous materials, battery materials, nanocrystals and quantum dots, supramolecular assemblies, drug-delivery systems, ionomers, and graphite oxides) and it is shown how interfacial chemistry can be addressed through the perspective of solid-state NMR characterization techniques.
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Affiliation(s)
- Alessandro Marchetti
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Juner Chen
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zhenfeng Pang
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Shenhui Li
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, P. R. China
| | - Daishun Ling
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, P. R. China
| | - Feng Deng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, P. R. China
| | - Xueqian Kong
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
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16
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Taher D, Nawara-Hultzsch AJ, Bhuvanesh N, Hampel F, Gladysz JA. Mono- and disubstitution reactions of gyroscope like complexes derived from Cl Pt Cl rotators within cage like dibridgehead diphosphine ligands. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.03.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Lang GM, Bhuvanesh N, Reibenspies JH, Gladysz JA. Syntheses, Reactivity, Structures, and Dynamic Properties of Gyroscope-like Iron Carbonyl Complexes Based on Dibridgehead Diarsine Cages. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00447] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Georgette M. Lang
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77843-3012, United States
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77843-3012, United States
| | - Joseph H. Reibenspies
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77843-3012, United States
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77843-3012, United States
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18
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Lang GM, Shima T, Wang L, Cluff KJ, Skopek K, Hampel F, Blümel J, Gladysz JA. Gyroscope-Like Complexes Based on Dibridgehead Diphosphine Cages That Are Accessed by Three-Fold Intramolecular Ring Closing Metatheses and Encase Fe(CO)3, Fe(CO)2(NO)+, and Fe(CO)3(H)+Rotators. J Am Chem Soc 2016; 138:7649-63. [DOI: 10.1021/jacs.6b03178] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Georgette M. Lang
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77843-3012, United States
| | - Takanori Shima
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - Leyong Wang
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - Kyle J. Cluff
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77843-3012, United States
| | - Katrin Skopek
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - Frank Hampel
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany
| | - Janet Blümel
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77843-3012, United States
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77843-3012, United States
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19
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Fiedler T, Bhuvanesh N, Hampel F, Reibenspies JH, Gladysz JA. Gyroscope like molecules consisting of trigonal or square planar osmium rotators within three-spoked dibridgehead diphosphine stators: syntheses, substitution reactions, structures, and dynamic properties. Dalton Trans 2016; 45:7131-47. [DOI: 10.1039/c6dt00692b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The OsLy moieties of the title complexes undergo rapid rotation within the diphosphine cages when L is restricted to Cl, Br, CO, H, and Me.
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Affiliation(s)
- Tobias Fiedler
- Department of Chemistry
- Texas A&M University
- College Station
- USA
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials
| | | | - Frank Hampel
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91054 Erlangen
- Germany
| | | | - John A. Gladysz
- Department of Chemistry
- Texas A&M University
- College Station
- USA
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20
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Lang GM, Skaper D, Hampel F, Gladysz JA. Synthesis, reactivity, structures, and dynamic properties of gyroscope like iron complexes with dibridgehead diphosphine cages: pre- vs. post-metathesis substitutions as routes to adducts with neutral dipolar Fe(CO)(NO)(X) rotors. Dalton Trans 2016; 45:16190-16204. [DOI: 10.1039/c6dt03258c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Substitution reactions of 4c+ BF4− afford the title complexes 9c-X, the Fe(CO)(NO)(X) moieties of which rapidly rotate within the diphosphine cage. Trends are interpreted in terms of horizontal/vertical van der Waals clearance.
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Affiliation(s)
| | - Dirk Skaper
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91054 Erlangen
- Germany
| | - Frank Hampel
- Institut für Organische Chemie and Interdisciplinary Center for Molecular Materials
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91054 Erlangen
- Germany
| | - John A. Gladysz
- Department of Chemistry
- Texas A&M University
- Texas 77842-3012
- USA
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21
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Koppaka A, Yempally V, Zhu L, Fortman GC, Temprado M, Hoff CD, Captain B. Synthesis of [Pt(SnBut3)(IBut)(μ-H)]2, a Coordinatively Unsaturated Dinuclear Compound which Fragments upon Addition of Small Molecules to Form Mononuclear Pt–Sn Complexes. Inorg Chem 2015; 55:307-21. [DOI: 10.1021/acs.inorgchem.5b02441] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anjaneyulu Koppaka
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
| | - Veeranna Yempally
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
| | - Lei Zhu
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
| | - George C. Fortman
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
| | - Manuel Temprado
- Department of Analytical Chemistry, Physical
Chemistry and Chemical Engineering, Universidad de Alcalá, Madrid 28801, Spain
| | - Carl D. Hoff
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
| | - Burjor Captain
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
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