�ber das Rotationsschwingungsspektrum des Acetylens (C2H2)

Herzberg, G.; Spinks, J. W. T.

doi:10.1007/bf01342559

Cited by 55 publications

(28 citation statements)

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“…The C À C bond length (1.18(1) ä) indicates that the C 2 2À species retains its triple bond character. [7,14,15] This is consistent with the case of previously reported silver acetylide-containing compounds. [16] The present C 2 2À ion is bound to all eight silver(i) atoms at AgÀC 2.18(1) ± 2.673(4) ä.…”

supporting

confidence: 92%

Crown Ethers as Ancillary Ligands in the Assembly of Silver(I) Aggregates Containing Embedded Acetylenediide

Wang

Mak

2002

Chemistry A European J

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Five silver(I) double salts containing embedded acetylenediide, [Ag([12]crown-4)(2)][Ag(10)(C(2))(CF(3)CO(2))(9)([12]crown-4)(2)(H(2)O)(3)] x H(2)O (2), [Ag(2)C(2) x 5 AgCF(3)CO(2) x (benzo[15]crown-5) x 2 H(2)O] x 0.5 H(2)O (3), [Ag(4)([18]crown-6)(4)(H(2)O)(3)][Ag(18)(C(2))(3)(CF(3)CO(2))(16)(H(2)O)(2.5)] x 2.5 H(2)O (4), [Ag(2)C(2) x 6 AgC(2)F(5)CO(2) x 2([15]crown-5)](2) (5), and [(Ag(2)C(2))(2) x (AgC(2)F(5)CO(2))(9) x ([18]crown-6)(2) x (H(2)O)(3.5)] x H(2)O (6), have been isolated by varying the types of crown ethers and anions employed. Single-crystal X-ray analysis has shown that complex 2 is composed of winding anionic chains with sandwiched [Ag([12]crown-4)(2)](+) ions accommodated in the concave cavities between them. In 3, silver(I) double cages each sandwiched by a couple of benzo[15]crown-5 ligands are linked by [Ag(2)(CF(3)CO(2))(2)] bridges to form a one-dimensional structure. For 4, an anionic silver column is generated through fusion of two kinds of silver polyhedra (triangulated dodecahedron and bicapped trigonal antiprism), and the charge balance is provided by aqua-ligated [Ag([18]crown-6)](+) ions. Complex 5 is a centrosymmetric hexadecanuclear supermolecule composed of two [(eta(5)-[15]crown-5)(2)(C(2)@Ag(7))(mu-C(2)F(5)CO(2))(5)] moieties connected through a [Ag(2)(C(2)F(5)CO(2))(2)] bridge. Compound 6 is a discrete supermolecule containing an asymmetric (C(2))(2)@Ag(13) cluster core capped by two [18]crown-6 ligands in mu(3)-eta(5) and mu(4)-eta(6) ligation modes.

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supporting

confidence: 92%

Crown Ethers as Ancillary Ligands in the Assembly of Silver(I) Aggregates Containing Embedded Acetylenediide

Wang

Mak

2002

Chemistry A European J

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“…The atomic parameters resulting from our refinement differ slightly from the published data, leading to a C±C distance of 122.6(2) pm. This is somewhat longer than the bond lengths found in acetylene (120.4 pm [20]) and CaC 2 (119.1 pm [21]), but is still in the range typical for a C±C triple bond. The crystal structure of Li 2 C 2 is depicted in figure 3.…”

Section: X-ray Powder Investigationsmentioning

confidence: 79%

Structural Phase Transition in Li2C2

Ruschewitz¹,

Pöttgen²

1999

Z. anorg. allg. Chem.

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“…1.217(7) lang. Dies stimmt gut mit dem erwarteten Wert für eine C-C-Dreifachbindung überein (Acetylen 1.205 ; [10] CaC 2 1.191 [11] ). Für LiAgC 2 wurde überraschenderweise ein längerer C-C-Abstand von 1.278(6) ermittelt.…”

unclassified

Neuartige ternäre Alkalimetallsilberacetylide MIAgC2 (MI=Li, Na, K, Rb, Cs)

Kockelmann

Ruschewitz

1999

Angewandte Chemie

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�ber das Rotationsschwingungsspektrum des Acetylens (C2H2)

Cited by 55 publications

References 0 publications

Crown Ethers as Ancillary Ligands in the Assembly of Silver(I) Aggregates Containing Embedded Acetylenediide

Crown Ethers as Ancillary Ligands in the Assembly of Silver(I) Aggregates Containing Embedded Acetylenediide

Structural Phase Transition in Li2C2

Neuartige ternäre Alkalimetallsilberacetylide MIAgC2 (MI=Li, Na, K, Rb, Cs)

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