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Peedika Paramban R, Guo Z, Deacon GB, Junk PC. Formation of a cyclooctatetraenylsamarium(III) inverse sandwich that ring-opens tetrahydrofuran. Dalton Trans 2023; 52:3563-3566. [PMID: 36637021 DOI: 10.1039/d2dt04164b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Reductive trapping of the cyclooctatetraenyl dianion (COT2-) by treatment of [Sm(DippForm)2(thf)2] (DippFormH = N,N'-bis(2,6-diisopropylphenyl)formamidine; thf = tetrahydrofuran) with 1,3,5,7-cyclooctatetraene (C8H8) in toluene yields an inverse sandwich dinuclear complex [Sm2(DippForm)4(COT)] (1), but [Sm(DippForm)(COT)(thf)2] (2) and [Sm(DippForm)2(O-C4H8-DippForm)(thf)] (3) in thf, and 1 yields 2 and 3 on treatment with thf.
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Affiliation(s)
| | - Zhifang Guo
- College of Science & Engineering, James Cook University, Townsville, QLD, 4811, Australia.
| | - Glen B Deacon
- School of Chemistry, Monash University, Clayton, VIC, 3800, Australia
| | - Peter C Junk
- College of Science & Engineering, James Cook University, Townsville, QLD, 4811, Australia.
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Guo Z, Wang J, Deacon GB, Junk PC. Selective Oxidation of a Single Metal Site of Divalent Calix[4]pyrrolide Compounds [Ln 2(N 4Et 8)(thf) 4] (Ln = Sm or Eu), Giving Mixed Valent Lanthanoid(II/III) Complexes. Inorg Chem 2022; 61:18678-18689. [DOI: 10.1021/acs.inorgchem.2c03172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhifang Guo
- College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
| | - Jun Wang
- College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
| | - Glen B. Deacon
- School of Chemistry, Monash University, Clayton 3800, Victoria, Australia
| | - Peter C. Junk
- College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
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Liu J, Xue J, Yang GP, Dang LL, Ma LF, Li DS, Wang YY. Recent advances of functional heterometallic-organic framework (HMOF) materials: Design strategies and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214521] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Reactivity of a Sterical Flexible Pentabenzylcyclopentadienyl Samarocene. INORGANICS 2022. [DOI: 10.3390/inorganics10020025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022] Open
Abstract
Reactivity studies of the classical divalent lanthanide compound [CpBz52Sm] (CpBz5 = pentabenzylcyclopentadienyl-anion) towards diphenyl dichalcogenides and d-element carbonyl complexes led to remarkable results. In the compounds obtained, a different number of Sm-C(phenyl) interactions and differently oriented benzyl groups were observed, suggesting—despite the preference of these interactions in [CpBz52Sm] described in previous studies—a flexible orientation of the benzyl groups and thus a variable steric shielding of the metal center by the ligand. The obtained compounds are either present as monometallic complexes (reduction of the dichalcogenides) or tetrametallic bridged compounds in the case of the d/f-element carbonyl complexes.
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Guo L, Guo C, Peng S, Song R. Synthesis, structure, and coordination chemistry of a neutral pyrrolyl-functionalized amidinate ligand. NEW J CHEM 2022. [DOI: 10.1039/d1nj05548h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new o-phenylene-bridged ligand incorporating neutral pyrrolyl and amidino moieties was designed and synthesized. The reactivity of the ligand was investigated and showed versatile coordination modes towards alkali- and rare-earth metals.
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Affiliation(s)
- Liping Guo
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Changjia Guo
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
| | - Shuqi Peng
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
| | - Renyuan Song
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
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Biswas M, Sañudo EC, Ray D. Carboxylate-Decorated Aggregation of Octanuclear Co 4Ln 4 (Ln = Dy, Ho, Yb) Complexes from Ligand-Controlled Hydrolysis: Synthesis, Structures, and Magnetic Properties. Inorg Chem 2021; 60:11129-11139. [PMID: 34242013 DOI: 10.1021/acs.inorgchem.1c01070] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
One-pot reactions of an asymmetric carboxy-ether-phenol based Schiff base H2L (2-((2-hydroxy-3-methoxybenzylidene)amino)benzoic acid) with selected Ln(NO3)3·nH2O and [Co2(μ-OH2)(O2CCMe3)4(HO2CCMe3)4] (Co2-Piv) in basic MeOH medium resulted in a family of three octanuclear complexes, [CoII4LnIII4L4(μ1,3-Piv)4(μ1,1,3-Piv)2(η1-Piv)2(μ3-OH)4(MeOH)2]·mMeOH·nH2O (Ln = Dy; m = 3, n = 1 (1), Ho; m = 4, n = 0 (2), Yb; m = 3, n = 1 (3)). The coordination aggregates thus obtained were nicely sustained by four ligand anions and eight externally added carboxylate anions showing three different modes of intermetallic connectivity. The options for incorporating different 4f ions in an investigative synthesis, without altering the resulting intermetallic core structure, were successful for the three representative examples. Single-crystal X-ray diffraction studies revealed that the compounds are isostructural and built from two initially formed partial dicubane-type Co2Ln2L2 units. In each of the tetranuclear parts, the metal ion centers are held together by two L2-, two μ3-HO-, three Piv- bridges, one terminal Piv-, and one terminal MeOH. Four carboxylate ends of four L2- units are responsible for connecting two Co2Ln2 units into octanuclear structures. The unique distortion around the CoII centers is achieved from the facile coordination of bigger 4f ions to the adjacent hard OO sites. The distortion is further maintained by the presence of terminal COO- groups from L2-. The dc magnetic susceptibility data revealed ferromagnetic coupling between the CoII and LnIII centers within the series, whereas the ac magnetic susceptibility measurements identified only 1, having a highly anisotropic DyIII ion, as a single-molecule magnet in the absence of any external magnetic field, with an energy barrier Ueff of 12.5 K.
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Affiliation(s)
- Mousumi Biswas
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - E Carolina Sañudo
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain.,Institut de Nanociència i Nanotecnologia, Universitat de Barcelona, (IN2UB) 08028 Barcelona, Spain
| | - Debashis Ray
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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Yamauchi Y, Nagai S, Terada T, Hoshimoto Y, Ogoshi S. Sm(II)-mediated Single-electron Reduction of Pentafluorophenylcopper(I). CHEM LETT 2021. [DOI: 10.1246/cl.210202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasuhiro Yamauchi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shun Nagai
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tomoya Terada
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoichi Hoshimoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Ward RJ, Pividori D, Carpentier A, Tarlton ML, Kelley SP, Maron L, Meyer K, Walensky JR. Isolation of a [Fe(CO)4]2–-Bridged Diuranium Complex Obtained via Reduction of Fe(CO)5 with Uranium(III). Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00205] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Robert J. Ward
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Daniel Pividori
- Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Inorganic Chemistry, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Ambre Carpentier
- Université de Toulouse and CNRS, INSA, UPS, CNRS, UMR 5215, LPCNO, Toulouse 31077, France
| | - Michael L. Tarlton
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Steven P. Kelley
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Laurent Maron
- Université de Toulouse and CNRS, INSA, UPS, CNRS, UMR 5215, LPCNO, Toulouse 31077, France
| | - Karsten Meyer
- Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Inorganic Chemistry, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Justin R. Walensky
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
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Yadav R, Dahlen M, Singh AK, Sun X, Gamer MT, Roesky PW. Nonanuclear zinc-gold [Zn 3Au 6] heterobimetallic complexes. Dalton Trans 2021; 50:8558-8566. [PMID: 34075990 DOI: 10.1039/d1dt01396c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nonanuclear zinc-gold heterobimetallic complexes were synthesized in a two-step process. Commercially available carboxy-functionalized phosphine ligands were used for selective binding to Zn and Au centers. In the first step, bipyridine coordinated Zn-metalloligands with free phosphine moieties were prepared. Reaction of Zn-metalloligands with [AuCl(tht)] (tht = tetrahydrothiophene) resulted in the formation of nonanuclear Zn-Au heterobimetallic complexes. The flexibility of the carboxy-functionalized phosphine ligands was shown to be crucial for the formation of aurophilic interactions. Further, the photoluminescence of the Zn-metalloligands and one Zn-Au complex was investigated at room temperature as well as 77 K. The emission spectra showed clear difference between the Zn-metalloligands and the Zn-Au complex.
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Affiliation(s)
- Ravi Yadav
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany.
| | - Milena Dahlen
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany.
| | - Akhil K Singh
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany.
| | - Xiaofei Sun
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany.
| | - Michael T Gamer
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany.
| | - Peter W Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany.
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