The crystal structure of zinc ethylxanthate

Ikeda, Takahiro; Hagihara, Hiroyuki

doi:10.1107/s0365110x66004195

Cited by 41 publications

(20 citation statements)

References 3 publications

(2 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To this end, zinc bis(O-ethylxanthate) (Zn(O-EtXan) 2 , with O-EtXan = S 2 COCH 2 CH 3 ) was used as the precursor. [22] This compound contains Zn±S bonds with average distances of »2.35 , [23] very similar to those in the various ZnS polymorphs, [24] and it can be decomposed to ZnS under relatively mild conditions. Moreover, it has an appreciable volatility and ambient stability.…”

Section: Introductionmentioning

confidence: 98%

Single‐Source Chemical Vapor Deposition of Zinc Sulfide‐Based Thin Films from Zinc bis(O‐ethylxanthate)

Barreca¹,

Tondello

Lydon

et al. 2003

Chemical Vapor Deposition

View full text Add to dashboard Cite

A novel single-source precursor, zinc bis(O-ethylxanthate), was employed for the CVD of ZnS-based thin films. The coatings were deposited on SiO 2 and SiO 2 /Si(100) substrates in a N 2 atmosphere in a cold-wall reactor in the temperature range 250± 400 C. The optical properties of the films were investigated by ultra violet-visible (UV-vis) absorption and Fourier transform infrared (FTIR) spectroscopies. The surface and in-depth chemical composition were studied by X-ray photoelectron spectroscopy (XPS), X-ray excited Auger electron spectroscopy (XE-AES), and secondary ion mass spectrometry (SIMS). Finally, atomic force microscopy (AFM) was employed to analyze the surface morphology of the coatings. Very thin films, with thickness less than 30 nm and no evidence of crystalline phases, were grown at temperatures of at least 300 C. Optical measurement showed that the coatings were highly transparent ( > 80 %) throughout the visible and IR spectral ranges.

show abstract

Section: Introductionmentioning

confidence: 98%

Single‐Source Chemical Vapor Deposition of Zinc Sulfide‐Based Thin Films from Zinc bis(O‐ethylxanthate)

Barreca¹,

Tondello

Lydon

et al. 2003

Chemical Vapor Deposition

View full text Add to dashboard Cite

show abstract

“…The topology of the chain is strictly linear owing to the aforementioned symmetry. It is apposite here to comment on the structure of the parent molecule found in 1; that is, [Zn(S 2 COEt) 2 ] n [67,68]. Here, each xanthate ligand is bidentate bridging and the resulting two-dimensional structure is conveniently described as being constructed by an infinite pattern of edge-shared squares, with each square comprising zinc atoms and with pairs of adjacent zinc atoms being bridged by a xanthate ligand resulting in ZnS 4 tetrahedra.…”

Section: Zinc Xanthate Structuresmentioning

confidence: 99%

Perplexing Coordination Behaviour of Potentially Bridging Bipyridyl-Type Ligands in the Coordination Chemistry of Zinc and Cadmium 1,1-Dithiolate Compounds

Tiekink

2018

Crystals

View full text Add to dashboard Cite

Abstract:The X-ray structural chemistry of zinc and cadmium 1,1-dithiolates (for example, xanthate, dithiophosphate and dithiocarbamate) with potentially bridging bipyridyl-type ligands (for example, 4,4 -bipyridine) is reviewed. For zinc, the xanthates and dithiophosphates uniformly form one-dimensional coordination polymers, whereas the zinc dithiocarbamates are always zero-dimensional, reflecting the exceptional chelating ability of dithiocarbamate ligands compared with xanthates and dithiophosphates. For cadmium, one-dimensional coordination polymers are usually found, reflecting the larger size of cadmium compared with zinc, but zero-dimensional aggregates are sometimes found. Steric effects associated with the 1,1-dithiolate-bound R groups are shown to influence supramolecular aggregation and, when formed, polymer topology in order to reduce steric hindrance; the nature of the bipyridyl-type ligand can also be influential. For the dithiocarbamates of both zinc and cadmium, in instances where the dithiocarbamate ligand is functionalised with hydrogen bonding potential, extended supramolecular architectures are often formed via hydrogen bonding interactions. Of particular interest is the observation that the bipyridyl-type ligands do not always bridge zinc or cadmium 1,1-dithiolates, being monodentate instead, often in the presence of hydrogen bonding. Thus, hydroxyl-O-H . . . N(pyridyl) hydrogen bonds are sometimes formed in preference to M←N(pyridyl) coordinate-bonds, suggesting a competition between the two modes of association.

show abstract

“…There are four binary zinc xanthate structures in this category, 1-4 [22][23][24][25], and key features of these are summarised in Table 1 along with the other cadmium and mercury structures included in this Section. In 1, that is, with R = Et [22], both xanthate ligands are bidentate, bridging two zinc centres laterally, with the result that a two-dimensional array ensues.…”

Section: Zinc Xanthatesmentioning

confidence: 99%

“…In 1, that is, with R = Et [22], both xanthate ligands are bidentate, bridging two zinc centres laterally, with the result that a two-dimensional array ensues. As shown in Figure 2a, the layer, with a flat topology, comprises interconnected, 16-membered {-ZnSCS} 4 rings.…”

Section: Zinc Xanthatesmentioning

confidence: 99%

Exploring the Topological Landscape Exhibited by Binary Zinc-triad 1,1-dithiolates

Tiekink

2018

Crystals

View full text Add to dashboard Cite

Abstract:The crystal chemistry of the zinc-triad binary 1,1-dithiolates, that is, compounds of xanthate [ − S 2 COR], dithiophosphate [ − S 2 P(OR) 2 ], and dithiocarbamate [ − S 2 CNR 2 ] ligands, is reviewed. Owing to a wide range of coordination modes that can be adopted by 1,1-dithiolate anions, such as monodentate, chelating, µ 2 -bridging, µ 3 -bridging, etc., there exists a rich diversity in supramolecular assemblies for these compounds, including examples of zero-, one-, and two-dimensional architectures. While there are similarities in structural motifs across the series of 1,1-dithiolate ligands, specific architectures are sometimes found, depending on the metal centre and/or on the 1,1-dithiolate ligand. Further, an influence of steric bulk upon supramolecular aggregation is apparent. Thus, bulky R groups generally preclude the close approach of molecules in order to reduce steric hindrance and therefore, lead to lower dimensional aggregation patterns. The ligating ability of the 1,1-dithiolate ligands also proves crucial in determining the extent of supramolecular aggregation, in particular for dithiocarbamate species where the relatively greater chelating ability of this ligand reduces the Lewis acidity of the zinc-triad element, which thereby reduces its ability to significantly expand its coordination number. Often, the functionalisation of the organic substituents in the 1,1-dithiolate ligands, for example, by incorporating pyridyl groups, can lead to different supramolecular association patterns. Herein, the diverse assemblies of supramolecular architectures are classified and compared. In all, 27 structurally distinct motifs have been identified.

show abstract

The crystal structure of zinc ethylxanthate

Cited by 41 publications

References 3 publications

Single‐Source Chemical Vapor Deposition of Zinc Sulfide‐Based Thin Films from Zinc bis(O‐ethylxanthate)

Single‐Source Chemical Vapor Deposition of Zinc Sulfide‐Based Thin Films from Zinc bis(O‐ethylxanthate)

Perplexing Coordination Behaviour of Potentially Bridging Bipyridyl-Type Ligands in the Coordination Chemistry of Zinc and Cadmium 1,1-Dithiolate Compounds

Exploring the Topological Landscape Exhibited by Binary Zinc-triad 1,1-dithiolates

Contact Info

Product

Resources

About