1-Iodo-2-p-tolyl-1-tellura-2-azaindene

Hamor, T. A.; Maslakov, A. G.; McWhinnie, William R.

doi:10.1107/s0108270194010802

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…The tendency of heterocyclic tellurium derivatives to dimerize is also illustrated by the structure of 1-iodo-2-ptolyl-1-tellura-2-azaindene 63 [ZENJOR] shown in Fig. 19.…”

Section: Dimeric Supermolecules Self-assembled Through Tellurium P-c ...mentioning

confidence: 99%

Tellurium⋯π-aryl interactions: a new bonding motif for supramolecular self-assembly and crystal engineering

Zukerman-Schpector

Haiduc

2002

CrystEngComm

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A search of the Cambridge Structural Database (CSD) was performed to identify Te … p-aryl interactions not reported before in the literature. The examination of the distance between tellurium atoms and aryl group centroids and the analysis of crystal packing, using deposited crystal structure data, produced a list of organotellurium compounds which showed a variety of Te … p bonding interactions. These include inter-ionic Te … p interactions in anion-cation ion pairs, intramolecular Te … p-aryl interactions in mono-and di-nuclear covalent molecular compounds, as well as in dimeric and tetrameric supermolecules or in supramolecular polymeric arrays formed through secondary bonds. Most interesting was the finding that intermolecular Te … p aryl interactions can connect molecular tectons, leading to supramolecular self-assembly with formation of dimeric and polymeric superstructures. Finally, Te … p aryl interactions may interconnect polymeric chains formed through Te … X secondary bonds into 2D and perhaps 3D networks. Thus, the Te … aryl interactions appear as a new bonding motif for supramolecular self-assembly, which could be exploited for crystal engineering in organotellurium chemistry, i.e. for the design of new materials with attractive useful properties.

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“…The tendency of heterocyclic tellurium derivatives to dimerize is also illustrated by the structure of 1-iodo-2-ptolyl-1-tellura-2-azaindene 63 [ZENJOR] shown in Fig. 19.…”

Section: Dimeric Supermolecules Self-assembled Through Tellurium P-c ...mentioning

confidence: 99%

Tellurium⋯π-aryl interactions: a new bonding motif for supramolecular self-assembly and crystal engineering

Zukerman-Schpector

Haiduc

2002

CrystEngComm

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“…There are 13 examples of dimeric aggregates with data for these collated in Table 12.2 [27][28][29][30][31][32][33][34][35][36][37][38][39][40]; chemical diagrams for the interacting species are given in Scheme 12.3. Basically, the dimeric aggregates fall into two classes, namely where the aggregate is sustained by a single Te(lone pair)···π (aryl) contact, that is, 9 and 10, illustrated in Figure 12.2a [28], and the remaining examples that are sustained by two Te(lone pair)···π (aryl) contacts, that is, 11-22, usually formed between centrosymmetrically related molecules, as exemplified in Figure 12.2b for 13 [31].…”

Section: Te(lone Pair) π (Aryl) Synthons In Tellurium(ii) Strucmentioning

confidence: 99%

Supramolecular Aggregation Patterns and Stereochemical Consequences of Tellurium(Lone Pair)…π(Aryl) Interactions

Haiduc

Tiekink

Zukerman-Schpector

2012

The Importance of Pi‐Interactions in Crystal Engineering

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While the formation of π-aryl bonds is typical for transition metals, the main-group elements display a reduced tendency to form π -aryl complexes. This being stated, it was established by the report of the so-called "Menschutkin's complexes", for example, C 6 H 6 .SbCl 3 [1], that main-group element compounds can and do form such interactions. In the case of transition-metal systems, metal···π interactions are readily rationalised in terms of electron donation from the electron-rich aryl system to the electropositive metal centre. By contrast, allied interactions with main-group elements, often having a lone pair of electrons, seems counterintuitive. However, as indicated from macromolecular chemistry [2,3], heteroatom(lone pair)···π (aryl) interactions are stabilising. Theoretical studies indicate energies of stabilisation ranging from 1.5 to 5.1 kJ mol −1 [4,5]. The heteroatom(lone

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