Highly polyhapto–aromatic interactions in thallium(I) coordination

Mechanochemical conversion of nano potassium hydrogen terephthalate to thallium analogue nanoblocks with strong hydrogen bonding and straight chain metalophillic interactions

“…Compound 2 is a three‐dimensional coordination polymer with lozenge framework along the crystallographic c axis (Figures a and S3a in the SI) and has secondary straight chain Tl···Tl metallophilic interactions (Table ) with distance of 3.76 Å which is lower than the sum of the vander Waals radii of two Tl atoms (4.40 Å, Figures b and S3b in the SI). Against to those observed in thallium(I) compounds, in compound 2 , the lone pair of Tl(I) is ‘inactive’ in the solid‐state and the arrangement of O‐atoms do not suggest a gap or hole in coordination geometry around the Tl(I) coordination sphere (Figure S2b in the SI). Our search also shows that Tl in compound 2 does not involve in Tl···C and Tl···H interactions.…”

Sonochemical synthesis of a two‐dimensional supramolecular polymer with nanoporous morphology, linear thallophilic and covalent hydrogen‐bonding interactions

“…Thus, TlO 6 Tl 2 coordination sphere can be considered around Tl(I) in 1 . Opposite to those observed in thallium (I) compounds, in compound 1 , the lone pair of Tl(I) is ‘inactive’ in the solid‐state and the arrangement of O‐atoms does not suggest a gap or hole in coordination geometry around the Tl (I) coordination sphere (Figure b). Our search also showed that Tl in compound 2 was not involved in Tl···C and Tl···H interactions.…”

“…Configuration is stereoactivity of the valence shell lone electron pair and conforming to directed ligands classified as holodirected and hemidirected . Other secondary interactions such as Tl … Tl, Tl … C, Tl … H exist in thallium (I) supramolecular chemistry, which identifies Tl (I) supramolecular polymers from other supramolecular compounds . Specially, thallium (I) compounds are similar in structure and chemical properties to potassium .…”

“…[9] Other secondary interactions such as Tl … Tl, Tl … C, Tl … H exist in thallium (I) supramolecular chemistry, which identifies Tl (I) supramolecular polymers from other supramolecular compounds. [10,11] Specially, thallium (I) compounds are similar in structure and chemical properties to potassium. [12,13] Much progress has been made using simple systems composed of covalent or strong hydrogen bonds with peripheral hydrogen-bonding substituents.…”

Sonochemical synthesis and characterization of a novel hetro-binuclear metal organic nano polymer based on picolinic acid ligand

“…Several filler for polymeric nanocomposite and the effects of ultrasound radiation on chemical reactions were reported in the recent works [44], [45], [46], [47], [48], [49], [50], [51], [52], [53]. In this manuscript, we have designed a simple sonochemical process to make nano structures of {[Pb6(pyc)6(N3)7K].½H2O}n, The ultrasonic power, sonicating time, the temperature of reaction were the parameters that have been changed for reaching the optimized condition.…”