The role of Fe–X···X–Fe contacts in the crystal structures of [(2-iodopyridinium)2FeX4]X (X = Cl, Br)

Awwadi, Firas F.; Taher, Deeb; Maabreh, Alaa; Alwedian, Fadel; Al-Ebaisat, Hamdan S.; Rüffer, Tobias; Lang, Heinrich

doi:10.1007/s11224-012-0090-3

Cited by 19 publications

(11 citation statements)

References 26 publications

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“…Cu, Zn, Co, Cd, etc.) [16][17][18][19][20][21][22][23], represent a large family of coordination compounds which reveal a clear trend to form XB in a solid state. Surprisingly, the analysis of previously published XRD data indicates that complexes with 2-halopyridines (2-XPy) are less studied than those with 3-, 4-or polysubstituted pyridines.…”

Section: Introductionmentioning

confidence: 99%

Halogen Bonding in Isostructural Co(II) Complexes with 2-Halopyridines

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Halogen Bonding in Isostructural Co(II) Complexes with 2-Halopyridines

et al. 2020

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“…Interestingly,u nlike the columnar stacking of the stair-like packings lices of the heterochiralc rystal of rac-1f,e nantiomer (À)-M-1f hadaunique homochirala ssembly of al evorotatory helix to form ah elical nanotubulars tructure through halogenbondingi nteractions of CÀCl···Cl (3.37 ,1 45.08)a nd CÀCl···p (3.45 ,1 40.48)b etween adjacent homochiral molecules ( Figure 5b,d ,a nd e). [19] Thea djacent helixes were mainly interconnectedb yC ÀH···p (2.85 and 2.89 )i nteractions. To the best of our knowledge,t his is the first example of one-dimensional helical nanotubes self-assembledf rom homochiral helicenes throughh alogen-bonding interactions.…”

Section: Resolution Of 116-diarylbenzo[5]helicene Derivatives and Chmentioning

confidence: 99%

“…Crystal data for rac-1 b:C 40 H 26 F 2 O 2 , M w = 636.05, crystal size 0.41 0.31 0.06 mm 3 ,t riclinic, space group P1 , a = 11.4303 (17) , b = 13.8758 (19) , c = 20.236(3) , a = 82.586 (6)…”

Section: Compound Rac-1 Amentioning

confidence: 99%

Synthesis, Structures, Resolution, and Chiroptical Properties of 1,16‐Diaryl‐Substituted Benzo[5]helicene Derivatives

Lin

Fang

et al. 2016

Chemistry An Asian Journal

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An efficient route to the synthesis of benzo[5]helicene derivatives functionalized on the interior side of the helix was developed, and resulted in a series of 1,16-diaryl-substituted benzo[5]helicene derivatives starting from easily available 7-methoxytetralone. X-ray crystal structures showed that the benzo[5]helicene derivatives had highly helical, twisted structures, and could all create hierarchical packing architectures with alternating P and M layers in the solid state. Moreover, seven pairs of enantiomers based on 1,16-diaryl-substituted benzo[5]helicene derivatives were also obtained by efficient resolution through HPLC with semipreparative chiral columns. The enantiomers all showed clear mirror-image circular dichroism (CD) spectra and high specific optical rotations, and their absolute configurations were determined by X-ray crystallography. Interestingly, a helical nanotubular structure was formed by the self-assembly of one enantiomer through halogen bonding. Furthermore, the enantiomers were found to have high racemization barriers and thermostability, which might be caused by the introduction of aryl substituents at the C1(C16) position.

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“…Apart from fundamental interest, this special type of non‐covalent interactions provides attractive tools for design of functional materials and sensor systems . Currently, there exist several classes of organic “building blocks” which are especially widely applied when aiming formation of XB, in particular, iodoarenes, halogenated alkanes, polyhalides,, halogenated pyridines, etc. Halogenated carboxylic acids (both aromatic and aliphatic) are rarely utilized as XB building blocks, in particular with heavier halides where the formation of halogen bonds can be expected.…”

Section: Introductionmentioning

confidence: 99%