[Te6N8(TeCl4)4]—Tellurium Nitride Stabilized by Tellurium Tetrachloride

Massa, Werner; Lau, Carsten; Möhlen, M.; Neumüller, Bernhard; Dehnicke, Kurt

doi:10.1002/(sici)1521-3773(19981102)37:20<2840::aid-anie2840>3.0.co;2-n

Cited by 35 publications

(4 citation statements)

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“…The number of nitrogen compounds containing a direct chalcogen−nitrogen bond is enormous, but few selenium and tellurium nitrogen species have been isolated, in comparison with the number of sulfur−nitrogen compounds (e.g., the best known is S 4 N 4 ). The binary nitrogen compounds of selenium and tellurium are rare and include the well-known Se 4 N 4 ; Te 4 N 4 and Te 3 N 4 , which have been only ambiguously identified, and the complex tellurium nitride [Te 6 N 8 (TeCl 4 ) 4 ] . The first tellurium azides were synthesized by reacting TeCl 4 with Me 3 SiN 3 ; the resulting compounds TeCl 3 N 3 and TeCl 2 (N 3 ) 2 were reported to be explosive solids .…”

Section: Introductionmentioning

confidence: 99%

Novel Organotellurium(IV) Diazides and Triazides

et al. 2002

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New series dialkyltellurium(IV) diazides R(2)Te(N(3))(2) (R = CH(3) (6), C(2)H(5) (7), n-C(3)H(7) (8), i-C(3)H(7) (9), c-C(6)H(11) (10)) and alkyl/aryltellurium(IV) triazides R'Te(N(3))(3) (R' = CH(3) (11), C(2)H(5) (12), n-C(3)H(7) (13), i-C(3)H(7) (14), C(6)H(5) (15), 2,4,6-(CH(3))(3)C(6)H(2) (16)) were synthesized by the straightforward substitution of fluorine atoms in the corresponding tellurium difluorides, or trifluorides respectively, with trimethylsilyl azide. In addition to standard characterization methods, the first crystal structures of covalent organotellurium(IV) triazides 12, 13, 14, and 16 have been determined. Ethyltellurium(IV) triazide, C(2)H(5)Te(N(3))(3) (12), crystallizes in the monoclinic space group P2(1)/n, a = 8.4530(2) A, b = 7.9094(2) A, c = 12.6288(3) A, beta = 91.876(1). n-Propyltellurium(IV) triazide, n-C(3)H(7)Te(N(3))(3) (13), crystallizes in the monoclinic space group P2(1)/n as well, a = 8.7999(2) A, b = 7.9674(2) A, c = 13.2334(3) A, beta = 94.626(1). Isopropyltellurium(IV) triazide, i-C(3)H(7)Te(N(3))(3) (14), crystallizes in the monoclinic space group C2/c, a = 20.058(2) A, b = 6.9620(3) A, c = 15.030(1) A, beta = 114.260(9). Mesityltellurium(IV) triazide, 2,4,6-(CH(3))(3)C(6)H(2)Te(N(3))(3) (16), crystallizes monoclinic as well; the space group is P2(1)/c, a = 7.5503(6) A, b = 23.581(1) A, c = 7.5094(6) A, beta = 91.295(9). The structures and vibrational frequencies of the methyl derivatives dimethyltellurium(IV) diazide (6) and methyltellurium(IV) triazide (11) have been calculated by density functional theory methods and were compared with the experimental metric parameters and vibrational data.

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Section: Introductionmentioning

confidence: 99%

Novel Organotellurium(IV) Diazides and Triazides

et al. 2002

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“…The chemistry of multiply bonded tellurium−nitrogen (TeN) compounds is poorly developed compared to that of their SN2a or SeN 2b,2c counterparts. In part this is due to the fulminatory nature of binary TeN systems. , The recent synthesis of the thermally stable tellurium diimide dimer cis -[ t BuNTe(μ-N t Bu)] 2 ( 1a ) provides an opportunity for investigations of the reactivity of TeN double bonds leading to new compounds with interesting properties and novel structures. For example, the reactions of 1 with the nucleophilic reagents Li[HN t Bu] or KO t Bu generate the clusters {Li 2 [Te(N t Bu) 3 ]} 2 5a and {K(THF)[Te(N t Bu) 2 (O t Bu)]} 2 ,5b which contain the anions [Te(N t Bu) 3 ] 2- and [Te(N t Bu) 2 (O t Bu)] - , respectively.…”

Section: Introductionmentioning

confidence: 99%

Reactions of cis-[^tBuNTe(μ-N^tBu)]₂ with CF₃SO₃Me and M[O₃SCF₃] (M = Ag, Cu): Chelation, Cis → Trans Isomerization, and the Spirocyclic Ligand [^tBuNTe(μ-N^tBu)₂Te(μ-O)]₂

1999

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The first investigations of coordination complexes of the tellurium diimide dimer [(t)BuNTe(&mgr;-N(t)Bu)](2) (1a) are presented. The coinage metals Ag(+) and Cu(+) were chosen to evaluate the ability of 1a to function as a chelating or bridging ligand. Reaction of 1a with Ag[O(3)SCF(3)] in toluene produces [Ag(2)L(2)][O(3)SCF(3)](2) (5, L = 1a) or, in the presence of LiCl, [Ag(2)L(2)(&mgr;-Cl)][O(3)SCF(3)] (3). In 4 the two Ag(+) ions bridge two molecules of cis-1a and engage in a weak Ag.Ag bonding interaction. In 3 the Cl(-) ion bridges two Ag(+) ions, which are each chelated to the terminal N(t)Bu groups of 1a. Treatment of 1a with Cu[O(3)SCF(3)] in toluene yields {[CuL][CF(3)SO(3)]}(n)() (5) which, in turn, reacts with 1a to form [Cu(2)L(3)][CF(3)SO(3)](2) (6). In 6 the two Cu(+) ions bridge cis and trans forms of 1a. The hydrolysis products {[(t)BuNTe(&mgr;-N(t)Bu)(2)Te(&mgr;-O)](2)[M(H(2)N(t)Bu)](2)}[O(3)SCF(3)](2) (7a, M = Ag; 7b, M = Cu) and [Cu(2)L((t)BuNH(2))(2)][O(3)SCF(3)](2) (8) were also structurally characterized. The complexes 7a,b contain the dimer [(t)BuNTe(&mgr;-N(t)Bu)(2)(&mgr;-O)](2) in which one of the terminal N(t)Bu ligands in 1a is replaced by an O atom. The central Te(2)O(2) ring in this spirocyclic ligand is planar with unsymmetrical oxygen bridging [d(Te-O) = 1.885(7) and 2.170(7) Å in 7b]. The ligand 1a in 8 is in the trans conformation. Mono- or dimethylation of 1a with CF(3)SO(3)Me was shown to occur at the terminal nitrogens by (1)H and (125)Te NMR spectroscopy.

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“…However, tellurium nitrides are instable. For instance, tetratellurium tetranitride (Te4N4) has an unconfirmed structure, while a well-defined tellurium nitride, [Te6N8(TeCl2)4(THF)4] can be obtained when TeCl4 is reacted with a THF solution of N(SiMe3)3 (Laitinen, Maaninen, and Pietikäinen 1998;Massa et al 1998).…”

Section: Chemical Propertiesmentioning

confidence: 99%

Tellurium, the Forgotten Element: A Review of the Properties, Processes, and Biomedical Applications of the Bulk and Nanoscale Metalloid

Medina-Cruz

Tien-Street

Vernet-Crua

et al. 2020

Racing for the Surface

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[Te6N8(TeCl4)4]—Tellurium Nitride Stabilized by Tellurium Tetrachloride

Cited by 35 publications

References 3 publications

Novel Organotellurium(IV) Diazides and Triazides

Novel Organotellurium(IV) Diazides and Triazides

Reactions of cis-[^tBuNTe(μ-N^tBu)]₂ with CF₃SO₃Me and M[O₃SCF₃] (M = Ag, Cu): Chelation, Cis → Trans Isomerization, and the Spirocyclic Ligand [^tBuNTe(μ-N^tBu)₂Te(μ-O)]₂

Tellurium, the Forgotten Element: A Review of the Properties, Processes, and Biomedical Applications of the Bulk and Nanoscale Metalloid

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[Te6N8(TeCl4)4]—Tellurium Nitride Stabilized by Tellurium Tetrachloride

Cited by 35 publications

References 3 publications

Novel Organotellurium(IV) Diazides and Triazides

Novel Organotellurium(IV) Diazides and Triazides

Reactions of cis-[tBuNTe(μ-NtBu)]2 with CF3SO3Me and M[O3SCF3] (M = Ag, Cu): Chelation, Cis → Trans Isomerization, and the Spirocyclic Ligand [tBuNTe(μ-NtBu)2Te(μ-O)]2

Tellurium, the Forgotten Element: A Review of the Properties, Processes, and Biomedical Applications of the Bulk and Nanoscale Metalloid

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Reactions of cis-[^tBuNTe(μ-N^tBu)]₂ with CF₃SO₃Me and M[O₃SCF₃] (M = Ag, Cu): Chelation, Cis → Trans Isomerization, and the Spirocyclic Ligand [^tBuNTe(μ-N^tBu)₂Te(μ-O)]₂