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Chivers T, Gao X, Sandblom N, Schatte G. Recent Developments in Tellurium-Nitrogen Chemistry. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426509808545932] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Tristram Chivers
- a Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- b Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- c Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- d Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
| | - Xiaoliang Gao
- a Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- b Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- c Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- d Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
| | - Nicole Sandblom
- a Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- b Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- c Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- d Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
| | - Gabriele Schatte
- a Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- b Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- c Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
- d Department of Chemistry , The University of Calgary , Calgary T2N 1N4, Alberta, Canada
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Maksimenko AA, Zakharov AV, Sadekov ID. Monoorganyl derivatives of tellurium(IV). RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc2000v069n10abeh000594] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Aragoni MC, Arca M, Devillanova FA, Garau A, Isaia F, Lippolis V, Mancini A. The nature of the chemical bond in linear three-body systems: from i3- to mixed chalcogen/halogen and trichalcogen moieties. Bioinorg Chem Appl 2007; 2007:17416. [PMID: 18389065 PMCID: PMC2276819 DOI: 10.1155/2007/17416] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2006] [Revised: 10/17/2006] [Accepted: 10/17/2006] [Indexed: 11/29/2022] Open
Abstract
The 3 centre-4 electrons (3c-4e) and the donor/acceptor or charge-transfer models for the description of the chemical bond in linear three-body systems, such as I(3) (-) and related electron-rich (22 shell electrons) systems, are comparatively discussed on the grounds of structural data from a search of the Cambridge Structural Database (CSD). Both models account for a total bond order of 1 in these systems, and while the former fits better symmetric systems, the latter describes better strongly asymmetric situations. The 3c-4e MO scheme shows that any linear system formed by three aligned closed-shell species (24 shell electrons overall) has reason to exist provided that two electrons are removed from it to afford a 22 shell electrons three-body system: all combinations of three closed-shell halides and/or chalcogenides are considered here. A survey of the literature shows that most of these three-body systems exist. With some exceptions, their structural features vary continuously from the symmetric situation showing two equal bonds to very asymmetric situations in which one bond approaches to the value corresponding to a single bond and the second one to the sum of the van der Waals radii of the involved atoms. This indicates that the potential energy surface of these three-body systems is fairly flat, and that the chemical surrounding of the chalcogen/halogen atoms can play an important role in freezing different structural situations; this is well documented for the I(3) (-) anion. The existence of correlations between the two bond distances and more importantly the linearity observed for all these systems, independently on the degree of their asymmetry, support the state of hypervalency of the central atom.
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Affiliation(s)
- M. Carla Aragoni
- Dipartimento di Chimica Inorganica ed Analitica, Universitá degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato, Cagliari 09042, Italy
| | - Massimiliano Arca
- Dipartimento di Chimica Inorganica ed Analitica, Universitá degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato, Cagliari 09042, Italy
| | - Francesco A. Devillanova
- Dipartimento di Chimica Inorganica ed Analitica, Universitá degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato, Cagliari 09042, Italy
| | - Alessandra Garau
- Dipartimento di Chimica Inorganica ed Analitica, Universitá degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato, Cagliari 09042, Italy
| | - Francesco Isaia
- Dipartimento di Chimica Inorganica ed Analitica, Universitá degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato, Cagliari 09042, Italy
| | - Vito Lippolis
- Dipartimento di Chimica Inorganica ed Analitica, Universitá degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato, Cagliari 09042, Italy
| | - Annalisa Mancini
- Dipartimento di Chimica Inorganica ed Analitica, Universitá degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato, Cagliari 09042, Italy
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Reeske G, Cowley AH. Direct reactions of tellurium tetrahalides with chelating nitrogen ligands. Trapping of TeI2by a 1,2-bis(arylimino)acenaphthene (aryl-BIAN) ligand and C–H activation of an α,α′-diiminopyridine (DIMPY) ligand. Chem Commun (Camb) 2006:4856-8. [PMID: 17345752 DOI: 10.1039/b610491f] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of TeI4 with the 2,6-diisopropylphenyl-substituted 1,2-bis(arylimino)acenaphthene ligand dpp-BIAN results in two-electron reduction of tellurium and formation of the complex (dpp-BIAN)TeI2, while treatment of TeCl4 with the alpha,alpha'-diiminopyridine ligand dpp-DIMPY causes C-H activation of an imino methyl group.
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Affiliation(s)
- Gregor Reeske
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712, USA
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Grubisha DS, Guzei IA, Al-Salim N, Boyd PDW, Brothers PJ, Woo LK. Novel Coordination in the First Tellurium Porphyrin Complex: Synthesis and Crystal Structure of [Te(ttp)Cl(2)] This work was supported in part by the Research Corporation. ttp=meso-tetra-p-tolylporphyrin. Angew Chem Int Ed Engl 2001; 40:4743-4745. [PMID: 12404402 DOI: 10.1002/1521-3773(20011217)40:24<4743::aid-anie4743>3.0.co;2-h] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Grubisha DS, Guzei IA, Al-Salim N, Boyd PDW, Brothers PJ, Woo LK. Novel Coordination in the First Tellurium Porphyrin Complex: Synthesis and Crystal Structure of [Te(ttp)Cl2]. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3757(20011217)113:24<4879::aid-ange4879>3.0.co;2-i] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liaw WF, Chiou SJ, Lee GH, Peng SM. A Discrete Chlorotellurate [Cl4Te-Mn(CO)5]-: Coordinative Addition of the Metalloanion [Mn(CO)5]- to TeCl4. Inorg Chem 1998. [DOI: 10.1021/ic9708677] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wen-Feng Liaw
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan, and Instrumentation Center and Department of Chemistry, National Taiwan University, Taipei 10764, Taiwan
| | - Show-Jen Chiou
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan, and Instrumentation Center and Department of Chemistry, National Taiwan University, Taipei 10764, Taiwan
| | - Gene-Hsiang Lee
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan, and Instrumentation Center and Department of Chemistry, National Taiwan University, Taipei 10764, Taiwan
| | - Shie-Ming Peng
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan, and Instrumentation Center and Department of Chemistry, National Taiwan University, Taipei 10764, Taiwan
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Fenske D, Maczek B, Maczek K. Synthesen und Strukturen der phosphor- und stickstoffverbr�ckten �bergangsmetallkomplexe [Pd(NPhPPh2)(PPh3)]2, [Pd(NPhPPh2)2 � Li(thf)]2, [Pd(NPhPPh2)Cl � Li(thf)3]2, [M(NPhPPh2)(HNPhPPh2)]2 (M ? Pd, Pt), [M{Ph2P(NPh)2}2] (M ? Co, Ni), [Ni(PPh2){Ph2P(NPh)2}]2 und [Ni2(PPh2)(NPhPPh2)(HNPhPPh2)3]. Z Anorg Allg Chem 1997. [DOI: 10.1002/zaac.19976230718] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Chivers T, Gao X, Parvez M. Investigations of the TeCl(4)-(t)BuNHLi Reaction: Synthesis, X-ray Structures, and Fluxional Behavior of the Tellurium-Nitrogen Compounds [Li(2)Te(N(t)Bu)(3)](2), {[LiTe(N(t)Bu)(2)(NH(t)Bu)](2)LiCl}(2), and {Te(2)(N(t)Bu)(4)[LiTe(N(t)Bu)(2)(NH(t)Bu)]LiCl}(2). Inorg Chem 1996; 35:4336-4341. [PMID: 11666648 DOI: 10.1021/ic960156t] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of (t)BuNHLi with TeCl(4) in toluene at -78 degrees C produces (t)BuNTe(&mgr;-N(t)Bu)(2)TeN(t)Bu (1) (55%) or [((t)BuNH)Te(&mgr;-N(t)Bu)(2)TeN(t)Bu]Cl (2) (65%) for 4:1 or 7:2 molar ratios, respectively. The complex {Te(2)(N(t)Bu)(4)[LiTe(N(t)Bu)(2)(NH(t)Bu)]LiCl}(2) (5) is obtained as a minor product (23%) from the 4:1 reaction. It is a centrosymmetric dimer in which each half consists of the tellurium diimide dimer 1 bonded through an exocyclic nitrogen atom to a molecule of LiTe(N(t)Bu)(2)(NH(t)Bu) which, in turn, is linked to a LiCl molecule. Crystals of 5 are monoclinic, of space group C2/c, with a = 27.680(6) Å, b = 23.662(3) Å, c = 12.989(2) Å, beta = 96.32(2) degrees, V = 8455(2) Å(3), and Z = 4. The final R and R(w) values were 0.046 and 0.047. At 65 degrees C in toluene solution, 5 dissociates into 1, LiCl, and {[LiTe(N(t)Bu)(2)(NH(t)Bu)](2)LiCl}(2) (4), which may also be prepared by treatment of [Li(2)Te(N(t)Bu)(3)](2) (6) with 2 equiv of HCl gas. The centrosymmetric structure of 6 consists of a distorted hexagonal prism involving two pyramidal Te(N(t)Bu)(3)(2)(-) anions linked by four Li atoms to give a Te(2)N(6)Li(4) cluster. Crystals of 6 are monoclinic, of space group P2(1)/c, with a = 10.194(2) Å, b = 17.135(3) Å, c = 10.482(2) Å, beta = 109.21(1) degrees, V = 1729.0(5) Å(3), and Z = 2. The final R and R(w) values were 0.026 and 0.023. VT (1)H and (7)Li NMR studies reveal that, unlike 1, compounds 2, 4, and 6 are fluxional molecules. Possible mechanisms for these fluxional processes are discussed.
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Affiliation(s)
- Tristram Chivers
- Department of Chemistry, The University of Calgary, Calgary, Alberta, Canada T2N 1N4
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Chivers T, Gao X, Parvez M. Preparation, Crystal Structures, and Isomerization of the Tellurium Diimide Dimers RNTe(&mgr;-NR')(2)TeNR (R = R' = (t)Bu; R = PPh(2)NSiMe(3), R' = (t)Bu, (t)Oct): X-ray Structure of the Telluradiazole Dimer [(t)Bu(2)C(6)H(2)N(2)Te](2). Inorg Chem 1996; 35:9-15. [PMID: 11666156 DOI: 10.1021/ic950154t] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of R'NHLi (R = (t)Bu, (t)Oct) with Ph(2)P(NSiMe(3))(2)Te(Cl)NPPh(2)NSiMe(3) in toluene at -78 degrees C, followed by warming to 23 degrees C, produces the tellurium diimide dimers RNTe(&mgr;-NR')(2)TeNR (2a, R' = (t)Bu, R = NPPh(2)NSiMe(3); 2b, R' = (t)Oct, R = NPPh(2)NSiMe(3)) and Ph(2)P(NHSiMe(3))(NSiMe(3)). X-ray analyses revealed that 2a and 2b have centrosymmetric structures containing a planar four-membered Te(2)N(2) ring and short exocyclic tellurium-nitrogen bond lengths (d(Te-N) = 1.900(5) and 1.897(4) or 1.905(4) Å for 2a and 2b, respectively). The exocyclic imido substituents adopt a trans arrangement with respect to the Te(2)N(2) ring. By contrast, the reaction of 2,4,6-(t)Bu(3)C(6)H(2)NHLi with Ph(2)P(NSiMe(3))(2)Te(Cl)NPPh(2)NSiMe(3) in toluene under similar conditions produces the telluradiazole ((t)Bu(2)C(6)H(2)N(2)Te)(2) (3), which exists as a weakly associated dimer in the solid state with intramolecular Te-N distances of 2.628(4) Å. The tellurium diimide dimer (t)BuNTe(&mgr;-N(t)Bu)(2)TeN(t)Bu (2c'), prepared by the reaction of TeCl(4) with (t)BuNHLi in a 1:4 molar ratio, consists of a folded Te(2)N(2) ring with exocyclic N(t)Bu groups in a cis orientation. The (1)H, (31)P, and (125)Te NMR spectra of 2a and 2b indicate that the trans isomers slowly transform into the corresponding cis isomers in solution. Crystals of 2b are triclinic, space group P&onemacr; (No. 2), with a = 13.304(3) Å, b = 16.927(3) Å, c = 13.292(5) Å, alpha = 98.94(2), beta = 109.27(2), gamma = 69.04(2) degrees, V = 2636(1) Å(3), and Z = 4. The final R and R(w) values were 0.034 and 0.033, respectively. Crystals of 2c' are orthorhombic, space group Pnma (No. 62), with a = 9.535(3) Å, b = 14.264(3) Å, c = 16.963(4) Å, V = 2307.1(9) Å(3), and Z = 4. The final R and R(w) values were 0.040 and 0.040, respectively. Crystals of 3 are monoclinic, space group P2(1)/n (No. 14), with a = 9.117(3) Å, b = 11.481(4) Å, c = 16.550(4) Å, beta = 97.76(2) degrees, V = 1716.5(8) Å(3), and Z = 4. The final R and R(w) values were 0.031 and 0.034, respectively.
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Affiliation(s)
- Tristram Chivers
- Department of Chemistry, The University of Calgary, Calgary, Alberta, Canada T2N 1N4
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Chivers T, Parvez M, Seay MA. The Preparation and X-Ray Structure of [AsPh4][Ph2P(S)NSiMe3] � 0.5 THF. Z Anorg Allg Chem 1995. [DOI: 10.1002/zaac.19956211102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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