1
|
Wang X, Lo PH. Synthesis and self-assembly of (C5H5)Fe(CO)2 (Fp)-Based organometallic macromolecules. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124588] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
2
|
Lo PH, Wang X. The effect of CX (alkyl groups) on the migration insertion polymerization (MIP) of PFpCX [PFp = (PPh2(CH2)3Cp)Fe(CO)2]. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
3
|
Leung A, Kang J, Cai Y, Chang W, Liu K, Xia H, Wang X. Competition between Ring-Closing Migratory Insertion Polymerization and Monomer Cyclization. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00346] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aaron Leung
- Department of Chemistry and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, 200 University Avenue, Waterloo, Ontario N2L 3G1, Canada
| | - Jing Kang
- Department of Chemistry and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, 200 University Avenue, Waterloo, Ontario N2L 3G1, Canada
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, Jilin, China
| | - Yuanting Cai
- Department of Chemistry and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, 200 University Avenue, Waterloo, Ontario N2L 3G1, Canada
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 261005, Fujian, China
| | - Weiwei Chang
- Department of Chemistry and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, 200 University Avenue, Waterloo, Ontario N2L 3G1, Canada
- Analysis and Testing Center, Shandong University of Technology, Zibo 255049, Shandong, China
| | - Kun Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, Jilin, China
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 261005, Fujian, China
| | - Xiaosong Wang
- Department of Chemistry and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, 200 University Avenue, Waterloo, Ontario N2L 3G1, Canada
| |
Collapse
|
4
|
Cao K, Peng L, Zhu J, Feng A, Liu D, Worku A, Liu S, Lin J, Yuan J, Wang X. Chain-Conformation-Directed Polymerization Cyclization for Effective Synthesis of Macrocycles in Bulk. Chemistry 2018; 24:15380-15386. [PMID: 30085369 DOI: 10.1002/chem.201803471] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 08/01/2018] [Indexed: 11/07/2022]
Abstract
Biological cyclization is highly efficient, and this can be attributed to the conformation of the backbone of the biopolymer. Taking advantage of metal-coordination geometry, we developed a method for conformation-directed polymerization cyclization through rational design of metal carbonyl monomers that could be used to produce cyclic macromolecules, even in bulk. P FpR [P Fp=(PPh2 (CH2 )3 Cp)Fe(CO)2 with the phosphine group tethered on the cyclopentadiene (Cp) ring; R=CH3 or (CH2 )5 CH3 ] was designed and synthesized for migration insertion polymerization to generate P(P FpR) with the polymer backbone containing Cp-Fe bonds. Growth of the backbone led to a cyclic conformation with close end-to-end distances, which facilitated the cyclization. This conformation-directed cyclization was attributed to the piano-stool metal-coordination geometry of the repeating units and the low rotational barrier of the Cp-Fe bonds in the backbone. The produced macrocycles, which contain a metal carbonyl coordination structure in their backbones, are rigid, unlike many organic macrocycles. The macrocycles thus have a large excluded volume. This new type of metal carbonyl macrocycle will be of interest as a building block for supramolecular chemistry and in the exploration of novel materials.
Collapse
Affiliation(s)
- Kai Cao
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Liao Peng
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.,Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Junli Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for, Ultrafine Materials of Ministry of Education, School of, Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Anchao Feng
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Dapeng Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Aklilu Worku
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Senyang Liu
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for, Ultrafine Materials of Ministry of Education, School of, Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Jinying Yuan
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Xiaosong Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| |
Collapse
|
5
|
Guan Z, Liu D, Lin J, Wang X. Aqueous self-assembly of hydrophobic macromolecules with adjustable rigidity of the backbone. SOFT MATTER 2017; 13:5130-5136. [PMID: 28657106 DOI: 10.1039/c7sm01101f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
P(FpC3P) (Fp: CpFe(CO)2; C3P: propyl diphenyl phosphine) has a helical backbone, resulting from piano stool metal coordination geometry, which is rigid with intramolecular aromatic interaction of the phenyl groups. The macromolecule is hydrophobic, but the polarized CO groups can interact with water for aqueous self-assembly. The stiffness of P(FpC3P), which is adjustable by temperature, is an important factor influencing the morphologies of kinetically trapped assemblies. P(FpC3P)7 self-assembles in DMSO/water (10/90 by volume) into lamellae at 25 °C, vesicles at 40 °C and irregular aggregates at higher temperatures (60 and 70 °C). The colloidal stability decreases in the order of lamellae, vesicles and irregular aggregates. Dissipative particle dynamics (DPD) simulation reveals the same temperature-dependent self-assembled morphologies with an interior of hydrophobic aromatic groups covered with the metal coordination units. The rigid backbone at 25 °C accounts for the formation of the layered morphology, while the reduced rigidity of the same P(FpC3P)7 at 40 °C curves up the lamellae into vesicles. At a higher temperature (60 or 70 °C), P(FpC3P)7 behaves as a random coil without obvious amphiphilic segregation, resulting in irregular aggregates. The stiffness is, therefore, a crucial factor for the aqueous assembly of macromolecules without obvious amphiphilic segregation, which is reminiscent of the solution behavior observed for many hydrophobic biological macromolecules such as proteins.
Collapse
Affiliation(s)
- Zhou Guan
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China.
| | | | | | | |
Collapse
|
6
|
Jiang H, Geng D, Liu D, Lanigan N, Wang X. Flexibility and Stability of Metal Coordination Macromolecules. Chemistry 2017; 23:8280-8285. [PMID: 28334462 DOI: 10.1002/chem.201701133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Indexed: 11/09/2022]
Abstract
The effect of chain structure on flexibility and stability of macromolecules containing weak P-Fe metal coordination bonds is studied. Migration insertion polymerization (MIP) of FpCX Fp (1) and PR2 CY PR2 (2) (Fp: CpFe(CO)2 ; CX and CY : alkyl spacers; P: phosphine; R: phenyl or isopropyl) generates P(1/2), in which the P-Fe and Fe-P bonds with opposite bonding direction are alternatively arranged in the backbone. On the other hand, P(FpCX P) synthesized from AB-type monomers (FpCX P) has P-Fe bonds arranged in the same direction. P(1/2) is more rigid and stable than P(FpCX P), which is attributed to the chain conformation resulting from the P-Fe bonding direction. In addition, the longer spacers render P(1/2) relatively flexible; the phenyl substituents, as compared with the isopropyl groups, improves the rigidity, thermal, and solution stability of P(1/2). It is therefore possible to incorporate weak metal coordination bonds into macromolecules with improved stability and adjustable flexibility for material processing.
Collapse
Affiliation(s)
- Heyan Jiang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.,Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, Chongqing Technology and Business University, Chongqing, 400067, P.R. China
| | - Diya Geng
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Dapeng Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Nicholas Lanigan
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Xiaosong Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| |
Collapse
|
7
|
Zhou N, Peng L, Salgado S, Yuan J, Wang X. Synthesis of Air-Stable Cyclopentadienyl Fe(CO) 2
(Fp) Polymers by a Host-Guest Interaction of Cyclodextrin with Air-Sensitive Fp Pendant Groups. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Na Zhou
- Department of Chemistry; Waterloo Institute for Nanotechnology (WIN); University of Waterloo; Waterloo N2L 3G1 Canada
| | - Liao Peng
- Department of Chemistry; Waterloo Institute for Nanotechnology (WIN); University of Waterloo; Waterloo N2L 3G1 Canada
- Key Lab of Organic Optoelectronics & Molecular Engineering; Department of Chemistry; Tsinghua University; Beijing 100084 P.R. China
| | - Shehan Salgado
- Department of Chemistry; Waterloo Institute for Nanotechnology (WIN); University of Waterloo; Waterloo N2L 3G1 Canada
| | - Jinying Yuan
- Key Lab of Organic Optoelectronics & Molecular Engineering; Department of Chemistry; Tsinghua University; Beijing 100084 P.R. China
| | - Xiaosong Wang
- Department of Chemistry; Waterloo Institute for Nanotechnology (WIN); University of Waterloo; Waterloo N2L 3G1 Canada
| |
Collapse
|
8
|
Zhou N, Peng L, Salgado S, Yuan J, Wang X. Synthesis of Air-Stable Cyclopentadienyl Fe(CO) 2 (Fp) Polymers by a Host-Guest Interaction of Cyclodextrin with Air-Sensitive Fp Pendant Groups. Angew Chem Int Ed Engl 2017; 56:6246-6250. [PMID: 28294476 DOI: 10.1002/anie.201611486] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/07/2017] [Indexed: 11/07/2022]
Abstract
Host-guest chemistry is used to address the challenge of the synthesis of air-stable polymers containing air-sensitive metal complexes. The complexation of the CpFe(CO)2 (Fp) pendent group with cyclodextrin (CD) molecules created air-stable poly(Fp-methylstyrene) P(CD/FpMSt). This CD complexation resulted in dimerization of the adjacent Fp groups, which was characterized by NMR, FTIR, and cyclic voltammetry (CV) analyses. P(CD/FpMSt) was soluble in DMSO and remained stable even the solution was exposed to air for months. The host-guest chemistry accounted for the improved stability, because the Fp groups decomposed upon removal of the CD molecules using competing guest molecules. The CD-complexed polymer showed light-trigged properties, including CO release and antimicrobial activity. Host-guest chemistry of air-sensitive organometallic complexes is therefore a promising technique that can be used to broaden the scope of metal-containing polymers (MCPs) with processable novel functions.
Collapse
Affiliation(s)
- Na Zhou
- Department of Chemistry, Waterloo Institute for Nanotechnology (WIN), University of Waterloo, Waterloo, N2L 3G1, Canada
| | - Liao Peng
- Department of Chemistry, Waterloo Institute for Nanotechnology (WIN), University of Waterloo, Waterloo, N2L 3G1, Canada.,Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, P.R. China
| | - Shehan Salgado
- Department of Chemistry, Waterloo Institute for Nanotechnology (WIN), University of Waterloo, Waterloo, N2L 3G1, Canada
| | - Jinying Yuan
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, P.R. China
| | - Xiaosong Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology (WIN), University of Waterloo, Waterloo, N2L 3G1, Canada
| |
Collapse
|