(PPh4)2[Mn(Se4)2]; Synthese und Kristallstruktur / (PPh4)2[Mn(Se4)
 2]; Synthesis and Crystal Structure

Kräuter, Gertrud; Ha‐Eierdanz, My‐Linh; Müller, Ulrich; Dehnicke, Kurt

doi:10.1515/znb-1990-0518

Cited by 9 publications

(3 citation statements)

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“…Indeed this is still the method of choice for making simple building blocks like Fe2(CO)6E2 (E = Se, Te).42 Presumably metal carbonyl anions could react with main-group halides as well, via simple substitution reactions (eq 24). This has been well-developed for earlier main group CpCr(CO)3~+ Se2Cl2 -* Cp2Cr2(CO)4(Se2) (24) halides but the selenium and tellurium halides have received only scant attention.43…”

Section: Reduction Of Chalcogen Oxides With Metal Carbonyl Anionsmentioning

confidence: 99%

New developments in the coordination chemistry of inorganic selenide and telluride ligands

Roof¹,

Kolis²

1993

Chem. Rev.

378

106

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Section: Reduction Of Chalcogen Oxides With Metal Carbonyl Anionsmentioning

confidence: 99%

New developments in the coordination chemistry of inorganic selenide and telluride ligands

Roof¹,

Kolis²

1993

Chem. Rev.

378

106

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“…The [Rh(S 5 ) 3 ] 3- anion has also been reported8a and its structure has been determined,8b but it is unstable and appears to decompose to polymeric [RhS 10 ] - in both aqueous and nonaqueous solutions. In view of the known [M(Se 4 ) 2 ] 2- anions with Mn, , Ni, , Pd, Pt, , Zn, ,, Cd, ,,, Hg, ,,− and Pb, one would expect the square-planar anions [M(Se 4 ) 2 ] 3- (M = Rh(I), Ir(I)) to exist. Our attempts to prepare such species have been unsuccessful, but they have led 17 to the synthesis of homoleptic, octahedral chalcogenometalates of the type [M(Q n ) 3 ] z - (M = Ir(III), Rh(III)).…”

Section: Introductionmentioning

confidence: 99%

Group 9 Chalcogenometalates

Albrecht‐Schmitt

Ibers

1996

Inorg. Chem.

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The compounds [K(18-crown-6)](3)[Ir(Se(4))(3)] (1), [K(2.2.2-cryptand)](3)[Ir(Se(4))(3)].C(6)H(5)CH(3) (2), and [K(18-crown-6)(DMF)(2)][Ir(NCCH(3))(2)(Se(4))(2)] (3) (DMF = dimethylformamide) have been prepared from the reaction of [Ir(NCCH(3))(2)(COE)(2)][BF(4)] (COE = cyclooctene) with polyselenide anions in acetonitrile/DMF. Analogous reactions utilizing [Rh(NCCH(3))(2)(COE)(2)][BF(4)] as a Rh source produce homologues of the Ir complexes; these have been characterized by (77)Se NMR spectroscopy. [NH(4)](3)[Ir(S(6))(3)].H(2)O.0.5CH(3)CH(2)OH (4) has been synthesized from the reaction of IrCl(3).nH(2)O with aqueous (NH(4))(2)S(m)(). In the structure of [K(18-crown-6)](3)[Ir(Se(4))(3)] (1) the Ir(III) center is chelated by three Se(4)(2)(-) ligands to form a distorted octahedral anion. The structure contains a disordered racemate of the Deltalambdalambdalambda and Lambdadeltadeltadelta conformers. The K(+) cations are pulled out of the planes of the crowns and interact with Se atoms of the [Ir(Se(4))(3)](3)(-) anion. [K(2.2.2-cryptand)](3)[Ir(Se(4))(3)].C(6)H(5)CH(3) (2) possesses no short K.Se interactions; here the [Ir(Se(4))(3)](3)(-) anion crystallizes as the Deltalambdalambdadelta/Lambdadeltadeltalambda racemate. In the crystal structure of [K(18-crown-6)(DMF)(2)][Ir(NCCH(3))(2)(Se(4))(2)] (3), the K(+) cation is coordinated by an 18-crown-6 ligand and two DMF molecules and the anion comprises an octahedral Ir(III) center bound by two chelating Se(4)(2)(-) chains and two trans acetonitrile groups. The [Ir(Se(4))(3)](3)(-) and [Rh(Se(4))(3)](3)(-) anions undergo conformational transformations as a function of temperature, as observed by (77)Se NMR spectroscopy. The thermodynamics of these transformations are: [Ir(Se(4))(3)](3)(-), DeltaH = 2.5(5) kcal mol(-)(1), DeltaS = 11.5(2.2) eu; [Rh(Se(4))(3)](3)(-), DeltaH = 5.2(7) kcal mol(-)(1), DeltaS = 24.7(3.0) eu.

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“…Ein in diesen Komplexen häufig anzutreffen des Strukturelem ent ist der gewellte MSe4-Fünf-ring, den m an z. B. in den Komplexen [IrSe4(M e2PC H 2C H 2PM e2)2]Cl [1], (PPh4)2[W2Se10] [2], (PPh4)2[MoSe9] [3] und in den Ionen [MH(Se4)2]2~ mit M = Zn, Cd, Hg, Ni, Mn, Pd mit verschiedenen Gegenionen [4][5][6][7][8] sowie im (PPh4)2[Pt(Se4)3] • D M F [9] beobachtet hat. Wir be richten im folgenden über einen Polyselenidokomplex von Kupfer(I), in dem eine CuSe4~ und eine CuSe5~-Einheit über ein Pentaselenidion m iteinan der verknüpft sind.…”

Section: Introductionunclassified

Synthese und Kristallstruktur von (PPh₄)₄[Cu₂Se₁₄] / Synthesis and Crystal Structure of (PPh₄)₄[Cu₂Se₁₄]

Müller

Ha‐Eierdanz

Kräuter

et al. 1990

Zeitschrift Für Naturforschung B

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Polyselenide Complex o f Copper(I), Synthesis, IR Spectra, Crystal Structure (PPh4)4[Cu2S e14] has been prepared by the reaction o f a lithium polyselenide solution in D M F with CuCl at 120 °C in the presence o f PPh4Br. The compound forms black crystals, which were characterized by IR spectroscopy as well as by an X-ray structure determination. Space group P 2 ,, Z = 2, 2690 observed unique reflexions, R = 0.095. Lattice dim ensions at 19 °C: a = 2139.5(9), 6 = 1 6 1 1 .7 (3 ), c = 1365.1(3) pm, ß = 93.54(3)°. The com pound consists o f PPh4+ and [Cu2Se14]4" ions, in which the two copper atoms are bridged by an Se52-chain. One o f the Cu atom s is a member o f a CuSe4 ring, the other one o f a CuSe5 ring; the coordina tion at each Cu atom is trigonal-planar.

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(PPh₄)₂[Mn(Se₄)₂]; Synthese und Kristallstruktur / (PPh₄)₂[Mn(Se₄₎ ₂]; Synthesis and Crystal Structure

Cited by 9 publications

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New developments in the coordination chemistry of inorganic selenide and telluride ligands

New developments in the coordination chemistry of inorganic selenide and telluride ligands

Group 9 Chalcogenometalates

Synthese und Kristallstruktur von (PPh₄)₄[Cu₂Se₁₄] / Synthesis and Crystal Structure of (PPh₄)₄[Cu₂Se₁₄]

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(PPh4)2[Mn(Se4)2]; Synthese und Kristallstruktur / (PPh4)2[Mn(Se4) 2]; Synthesis and Crystal Structure

Cited by 9 publications

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New developments in the coordination chemistry of inorganic selenide and telluride ligands

New developments in the coordination chemistry of inorganic selenide and telluride ligands

Group 9 Chalcogenometalates

Synthese und Kristallstruktur von (PPh4)4[Cu2Se14] / Synthesis and Crystal Structure of (PPh4)4[Cu2Se14]

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(PPh₄)₂[Mn(Se₄)₂]; Synthese und Kristallstruktur / (PPh₄)₂[Mn(Se₄₎ ₂]; Synthesis and Crystal Structure

Synthese und Kristallstruktur von (PPh₄)₄[Cu₂Se₁₄] / Synthesis and Crystal Structure of (PPh₄)₄[Cu₂Se₁₄]