X-ray structural study of nonvalence interactions and coordination in organometallic compounds

Kuz'mina, L. G.; Struchkov, Yu. T.; Rokhlina, E. M.; Kravtsov, D. N.

doi:10.1007/bf00754814

Cited by 10 publications

(19 citation statements)

References 6 publications

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“…The presence of two similar independent structures, A and B, has also been reported for other thiomercury derivatives (Kuz'mina & Struchkov, 1984;Tasende et al, 1990;Zukerman-Schpector et al, 1991;Varela et al, 1993;Bravo et al, 1985;Castano et al, 1991;Hutton et al, 1980). This phenomenon was Acta Crystallographica Section C…”

Section: Commentsupporting

confidence: 60%

“…attributed to a low residual Lewis acidity of Hg in these complexes, leading to the formation of`secondary bonds' that are intermediate in strength between covalent and van der Waals bonds (Kuz'mina & Struchkov, 1984). Indeed, the intramolecular HgÁ Á ÁO1 distances in molecules A and B of (I) were found to be 2.955 (11) and 3.155 (11) A Ê , respectively.…”

Section: Figurementioning

confidence: 99%

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Methyl 2,3-dideoxy-2-S-methylmercurio-2-thio-β-D-manno-oct-2-ulopyranosonate-(2,6)

2002

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The hexopyranosyl ring of the title compound, [Hg(CH(3))(C(9)H(15)O(7)S)], adopts the (4)C(1) chair conformation, and the anomeric configuration of the thiomethylmercury linkage is beta. The compound exists as two symmetry-independent conformers, A and B, within the unit cell, and each shows an almost linear S-Hg-C arrangement. Most of the bond distances and angles in A and B are similar, although a marked difference exists in the side-chain conformation. Weak secondary intramolecular (between Hg and ring O) and intermolecular (between A and B conformers) interactions are documented.

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Section: Commentsupporting

confidence: 60%

Section: Figurementioning

confidence: 99%

Methyl 2,3-dideoxy-2-S-methylmercurio-2-thio-β-D-manno-oct-2-ulopyranosonate-(2,6)

2002

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“…They lie outside the sum of the van der Waals radii of fluorine (135 pm [18]) and mercury (173 pm [19]), and appear inconsistent with significant Hg´´´F interactions. (Van der Waals radii from 150 to 173 pm (and larger ± see below) have been suggested for mercury [7,19,20] and are critically assessed in [19].) There is generally a marginal reduction of the F±C±C(1) angles from 120°(117.5(9)±120.2(4)°), hinting at a slight attraction of F to Hg.…”

Section: Resultsmentioning

confidence: 98%

The X-ray Crystal Structures of Hg(C6F4X-p)2 (X = NH2, OMe, or Me) - Two Examples of Supramolecular Lewis Acid/Base Complexes

Deacon

Forsyth

Freckmann

et al. 2000

Z. anorg. allg. Chem.

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“…Linear coordination is common for mercury 22,23 and is often attributed to relativistic effects, although other factors have also been considered. 24 …”

Section: Resultsmentioning

confidence: 99%

“…23 Specifically, each mercury center of PhSeHgR interacts with the selenium atoms of three adjacent PhSeHgR molecules. As such, the extended structure may be considered to be composed of dinuclear rectangular (PhSeHgR) 2 moieties that are linked together in a chain, as illustrated in Figure 3.…”

Section: Resultsmentioning

confidence: 99%

Phenylselenolate mercury alkyl compounds, PhSeHgMe and PhSeHgEt: Molecular structures, protolytic Hg–C bond cleavage and phenylselenolate exchange

et al. 2016

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The phenylselenolate mercury alkyl compounds, PhSeHgMe and PhSeHgEt, have been structurally characterized by X-ray diffraction, thereby demonstrating that both compounds are monomeric with approximately linear coordination geometries; the mercury centers do, nevertheless, exhibit secondary Hg•••Se intermolecular interactions that serve to increase the coordination number in the solid state. The ethyl derivative, PhSeHgEt, undergoes facile protolytic cleavage of the Hg–C bond to release ethane at room temperature, whereas PhSeHgMe exhibits little reactivity under similar conditions. Interestingly, the cleavage of the Hg–C bond of PhSeHgEt is also more facile than that of the thiolate analogue, PhSHgEt, which demonstrates that coordination by selenium promotes protolytic cleavage of the mercury-carbon bond. The phenylselenolate compounds PhSeHgR (R = Me, Et) also undergo degenerate exchange reactions with, for example, PhSHgR and RHgCl. In each case, the alkyl groups preserve coupling to the 199Hg nuclei, thereby indicating that the exchange process involves metathesis of the Hg–SePh/Hg–X groups rather than metathesis of the Hg–R/Hg–R groups.

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X-ray structural study of nonvalence interactions and coordination in organometallic compounds

Cited by 10 publications

References 6 publications

Methyl 2,3-dideoxy-2-S-methylmercurio-2-thio-β-D-manno-oct-2-ulopyranosonate-(2,6)

Methyl 2,3-dideoxy-2-S-methylmercurio-2-thio-β-D-manno-oct-2-ulopyranosonate-(2,6)

The X-ray Crystal Structures of Hg(C6F4X-p)2 (X = NH2, OMe, or Me) - Two Examples of Supramolecular Lewis Acid/Base Complexes

Phenylselenolate mercury alkyl compounds, PhSeHgMe and PhSeHgEt: Molecular structures, protolytic Hg–C bond cleavage and phenylselenolate exchange

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