Insertion of One and Two Arsenic Atoms into Calix[4]arenes

Shang, Su; Khasnis, Dilip V.; Zhang, Hongming; Small, Aaron C.; Fan, Maomian; Lattman, Michael

doi:10.1021/ic00118a007

Cited by 25 publications

(23 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…supporting the assignment of the oxidation state +3. We note that the As−O bonding pattern observed in the title compound is different to that found in As‐POVs, where the As−O bonds vary in a narrow range of ≈1.75 to 1.80 Å. Beside in As‐POVs, the As 2 O 5 moiety is also observed in complexes like in [(LM) 2 (As 2 O 5 )] (L=C 6 H 3 ‐2,6‐(CH 2 NMe 2 ) 2 ; M=Sb, Bi), [30] in arsenanes, [31] or is integrated in calixarenes [32] . But the As−O bonds in these compounds do not differ from that reported for As‐POVs.…”

Section: Resultsmentioning

confidence: 99%

The Coordination Polymer Cr(en)₂As₂VO₇ Consisting of Alternating VO₄ Tetrahedra and As₂O₅ Handles Decorated by Cr³⁺ Centered Complexes

Rasmussen

Näther

Bensch

2021

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

The new coordination polymer Cr(en)2As2VO7 (en=ethylenediamine) was synthesized under solvothermal conditions as deep red crystals. In the crystal structure VO4 tetrahedra and As2O5 handles formed by corner‐sharing of two AsO3 pyramidal units are joined by common oxygen atoms into an undulated chain that is directed along the crystallographic b‐axis. The chain is decorated by [Cr(en)2]3+ complexes with the Cr3+ cation having bonds to two terminal O2− anions of the As2O5 moiety thus generating a CrN4O2 octahedron, which displays a cis‐configuration. The connection mode between Cr3+ and As2O5 leads to formation of a six‐membered CrAs2O3 ring. The chains are arranged in a layer‐like fashion in the (001) plane and these layers are stacked along [001]. A large number of N−H⋅⋅⋅O and C−H⋅⋅⋅O hydrogen bonds generate a three dimensional network. A Hirshfeld surface analysis was performed for visualizing the extended interchain interactions. The hydrogen bonding interactions are clearly detected in the IR spectrum. The UV‐Vis spectrum shows an absorption at 2.3 eV which is in agreement with the red color of the sample.

show abstract

Section: Resultsmentioning

confidence: 99%

The Coordination Polymer Cr(en)₂As₂VO₇ Consisting of Alternating VO₄ Tetrahedra and As₂O₅ Handles Decorated by Cr³⁺ Centered Complexes

Rasmussen

Näther

Bensch

2021

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

“…When Lattman et al compared phosphorus and arsenic calixarene complexes, a few important differences were noticed [20]. Vigalok et al found the similar dimetallic binding pattern of zinc-calixarene complexes [21].…”

Section: Resultsmentioning

confidence: 99%

Ab Initio Investigating the Bonding and Electronic Structure in Bismuth Calixarene Complexes

Zhao¹,

Fan²

2017

dtetr

View full text Add to dashboard Cite

ABSTRACT The geometric and electronic structures of calixarene bismuth(III) complexes have been investigated by ab initio method in this study. Three conformations (cone shape conformation with C 2v symmetry, 1,2-alternative conformation with C 2h symmetry and 1,3-alternative conformation) are investigated as possible binding modes between bismuth fragment and calixarene fragment. The optimized geometries are then compared with the recent reported crystal structure. Two bis-muth(III) fragments are needed to bind with calixarene ligand due to the inert-pair effect. Co-crystalized LiCl-DMSO fragment plays a crucial role in stabilizing the bismuth calixarene crystal, where the binding energy ΔH is estimated to be 55.3 kcal/mol or 56.1 kcal/mol with zero-point energy correction. The estimated ΔG is -28.2 kcal/mol for the complex, which is consistent with the strong HC 4 Bi-ClLi interactions. The trans effect is evidenced by two slight longer Bi-O bond lengths.

show abstract

“…In aqueous medium, the adsorption density of arsenic can be improved by introducing hydrophilic groups at the wide rim of PTC6. The mono arsenic and diarsenic complexes can be expected between PTC6 and arsenic species similar to that of calix[4]arene 8…”

Section: Resultsmentioning

confidence: 99%

“…The mono arsenic derivatives with arsenic bonded to three of the four phenolic units of calix [4]arene and diarsenic derivatives with each arsenic bonded to two adjacent phenolic units with AsOAs bridges were proposed. Recently, the formation of stable five coordinate silicon and phosphorus derivatives with p ‐ tert ‐butyl calix[4]arene was reported 8. In the present study, the adsorption of arsenic on calix[6]arene was attempted.…”

Section: Introductionmentioning

confidence: 89%

Studies on the adsorption of arsenic on calix[6]arene

Chennakesavulu

Raju

Prabhakar

2010

J of Physical Organic Chem

View full text Add to dashboard Cite

p‐tert‐butyl calix[6]arene (PTC6) was synthesized and characterized by solid‐ and liquid‐state NMR and LC‐MS techniques. The adsorption of arsenite and arsenate on calix[6]arene under different pH conditions and adsorbate doses was studied. The maximum adsorption of arsenic species on calix[6]arene was observed around neutral pH and the adsorption density of As (III) was higher than that of As (V). The adsorption of neutral H3AsO3 and negatively charged H2AsO 4− molecules on calix[6]arene was attributed to the condensation reaction between hydroxyl groups of PTC6 and arsenic species. The complexation of arsenite with phenolic oxygen was confirmed by solid‐state 13C NMR CP‐MAS. Exo attack mechanism was proposed to describe the interaction of arsenous and arsenic acid molecules with PTC6. The specific interaction between calix[6]arene and arsenic species was further substantiated by zeta‐potential (ζ‐potential) measurements and free energy of adsorption. The free energy of adsorption ($\Delta G_{{\rm ads}}^{\rm o} $) estimated from Stern–Grahame equation was found to be 25 kJ/mole for As (III) and 19 kJ/mole for As (V). Copyright © 2010 John Wiley & Sons, Ltd.

show abstract

Insertion of One and Two Arsenic Atoms into Calix[4]arenes

Cited by 25 publications

References 0 publications

The Coordination Polymer Cr(en)₂As₂VO₇ Consisting of Alternating VO₄ Tetrahedra and As₂O₅ Handles Decorated by Cr³⁺ Centered Complexes

The Coordination Polymer Cr(en)₂As₂VO₇ Consisting of Alternating VO₄ Tetrahedra and As₂O₅ Handles Decorated by Cr³⁺ Centered Complexes

Ab Initio Investigating the Bonding and Electronic Structure in Bismuth Calixarene Complexes

Studies on the adsorption of arsenic on calix[6]arene

Contact Info

Product

Resources

About

Insertion of One and Two Arsenic Atoms into Calix[4]arenes

Cited by 25 publications

References 0 publications

The Coordination Polymer Cr(en)2As2VO7 Consisting of Alternating VO4 Tetrahedra and As2O5 Handles Decorated by Cr3+ Centered Complexes

The Coordination Polymer Cr(en)2As2VO7 Consisting of Alternating VO4 Tetrahedra and As2O5 Handles Decorated by Cr3+ Centered Complexes

Ab Initio Investigating the Bonding and Electronic Structure in Bismuth Calixarene Complexes

Studies on the adsorption of arsenic on calix[6]arene

Contact Info

Product

Resources

About

The Coordination Polymer Cr(en)₂As₂VO₇ Consisting of Alternating VO₄ Tetrahedra and As₂O₅ Handles Decorated by Cr³⁺ Centered Complexes

The Coordination Polymer Cr(en)₂As₂VO₇ Consisting of Alternating VO₄ Tetrahedra and As₂O₅ Handles Decorated by Cr³⁺ Centered Complexes