Structural transformations of Pb(II)- trans -1,2-bis(4′-pyridyl) ethene coordination polymers in solution

Abdul Malik Puthan Peedikakkal; Jagadese J. Vittal

doi:10.1021/cg201071y

Structural transformations of Pb(II)- trans -1,2-bis(4′-pyridyl) ethene coordination polymers in solution

Abdul Malik Puthan Peedikakkal, Jagadese J. Vittal^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Reaction of bpe (bpe = trans-1,2-bis(4′-pyridyl)ethylene) with Pb(OAc)₂•3H₂O in the presence of trifluoroacetic acid (HTFA) affords a triple-stranded coordination polymer (CP) [Pb ₃(μ-bpe)₃(μ-O₂CCF₃) ₂(μ-O₂CCH₃)₂(O ₂CCF₃)₂] (1) in two days, which undergoes structural transformation in solution to yield a two-dimensional (2D) sheet-like CP [Pb(μ-bpe)(μ-O₂CCH₃)(O₂CCF ₃)]•0.25bpe•1.75H₂O (2) in three weeks; finally compound 2 rearranges to [Pb(μ-bpe)(O₂CCH₃)(O ₂CCF₃)] (3) in the fourth week. Compound 3 has a molecular fabric-like interwoven structure formed by spiral one-dimensional (1D) coordination polymeric chains. Reaction of bpe with Pb(O₂CCF ₃)₂ and Pb(OAc)₂•3H₂O respectively in equimolar ratio produces [Pb(μ-bpe)(μ-O ₂CCF₃)₂] (4) and [Pb(μ-bpe)(O ₂CCH₃)₂]•0.25H₂O (5). The compound 4 is a three-dimensional (3D) CP with a 4².6 ³.8-sra (SrAl₂) topology, whereas 5 has a double-stranded structure with Pb(II)•••π (pyridyl) interactions between 1D chains. The compounds [Pb(μ-bpe)(μ-O₂CCH₃)(O ₂CCF₃)]•0.25bpe (2a), 4, and 5 have been characterized by X-ray crystallography, while 1 and 3 were reported before. The factors influencing the rearrangement of CPs in solution have been discussed. The structural topological features observed in 2a, 4, and 5 have been attributed to the coordination preference of the Pb(II) and the carboxylate ligands.

Original language	English
Pages (from-to)	4697-4703
Number of pages	7
Journal	Crystal Growth and Design
Volume	11
Issue number	10
DOIs	https://doi.org/10.1021/cg201071y
State	Published - 5 Oct 2011
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1021/cg201071y

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@article{15cad0a1dace4b08b120720fe1d25760,

title = "Structural transformations of Pb(II)- trans -1,2-bis(4′-pyridyl) ethene coordination polymers in solution",

abstract = "Reaction of bpe (bpe = trans-1,2-bis(4′-pyridyl)ethylene) with Pb(OAc)2•3H2O in the presence of trifluoroacetic acid (HTFA) affords a triple-stranded coordination polymer (CP) [Pb 3(μ-bpe)3(μ-O2CCF3) 2(μ-O2CCH3)2(O 2CCF3)2] (1) in two days, which undergoes structural transformation in solution to yield a two-dimensional (2D) sheet-like CP [Pb(μ-bpe)(μ-O2CCH3)(O2CCF 3)]•0.25bpe•1.75H2O (2) in three weeks; finally compound 2 rearranges to [Pb(μ-bpe)(O2CCH3)(O 2CCF3)] (3) in the fourth week. Compound 3 has a molecular fabric-like interwoven structure formed by spiral one-dimensional (1D) coordination polymeric chains. Reaction of bpe with Pb(O2CCF 3)2 and Pb(OAc)2•3H2O respectively in equimolar ratio produces [Pb(μ-bpe)(μ-O 2CCF3)2] (4) and [Pb(μ-bpe)(O 2CCH3)2]•0.25H2O (5). The compound 4 is a three-dimensional (3D) CP with a 42.6 3.8-sra (SrAl2) topology, whereas 5 has a double-stranded structure with Pb(II)•••π (pyridyl) interactions between 1D chains. The compounds [Pb(μ-bpe)(μ-O2CCH3)(O 2CCF3)]•0.25bpe (2a), 4, and 5 have been characterized by X-ray crystallography, while 1 and 3 were reported before. The factors influencing the rearrangement of CPs in solution have been discussed. The structural topological features observed in 2a, 4, and 5 have been attributed to the coordination preference of the Pb(II) and the carboxylate ligands.",

author = "Peedikakkal, {Abdul Malik Puthan} and Vittal, {Jagadese J.}",

year = "2011",

month = oct,

day = "5",

doi = "10.1021/cg201071y",

language = "English",

volume = "11",

pages = "4697--4703",

journal = "Crystal Growth and Design",

issn = "1528-7483",

publisher = "American Chemical Society",

number = "10",

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TY - JOUR

T1 - Structural transformations of Pb(II)- trans -1,2-bis(4′-pyridyl) ethene coordination polymers in solution

AU - Peedikakkal, Abdul Malik Puthan

AU - Vittal, Jagadese J.

PY - 2011/10/5

Y1 - 2011/10/5

N2 - Reaction of bpe (bpe = trans-1,2-bis(4′-pyridyl)ethylene) with Pb(OAc)2•3H2O in the presence of trifluoroacetic acid (HTFA) affords a triple-stranded coordination polymer (CP) [Pb 3(μ-bpe)3(μ-O2CCF3) 2(μ-O2CCH3)2(O 2CCF3)2] (1) in two days, which undergoes structural transformation in solution to yield a two-dimensional (2D) sheet-like CP [Pb(μ-bpe)(μ-O2CCH3)(O2CCF 3)]•0.25bpe•1.75H2O (2) in three weeks; finally compound 2 rearranges to [Pb(μ-bpe)(O2CCH3)(O 2CCF3)] (3) in the fourth week. Compound 3 has a molecular fabric-like interwoven structure formed by spiral one-dimensional (1D) coordination polymeric chains. Reaction of bpe with Pb(O2CCF 3)2 and Pb(OAc)2•3H2O respectively in equimolar ratio produces [Pb(μ-bpe)(μ-O 2CCF3)2] (4) and [Pb(μ-bpe)(O 2CCH3)2]•0.25H2O (5). The compound 4 is a three-dimensional (3D) CP with a 42.6 3.8-sra (SrAl2) topology, whereas 5 has a double-stranded structure with Pb(II)•••π (pyridyl) interactions between 1D chains. The compounds [Pb(μ-bpe)(μ-O2CCH3)(O 2CCF3)]•0.25bpe (2a), 4, and 5 have been characterized by X-ray crystallography, while 1 and 3 were reported before. The factors influencing the rearrangement of CPs in solution have been discussed. The structural topological features observed in 2a, 4, and 5 have been attributed to the coordination preference of the Pb(II) and the carboxylate ligands.

AB - Reaction of bpe (bpe = trans-1,2-bis(4′-pyridyl)ethylene) with Pb(OAc)2•3H2O in the presence of trifluoroacetic acid (HTFA) affords a triple-stranded coordination polymer (CP) [Pb 3(μ-bpe)3(μ-O2CCF3) 2(μ-O2CCH3)2(O 2CCF3)2] (1) in two days, which undergoes structural transformation in solution to yield a two-dimensional (2D) sheet-like CP [Pb(μ-bpe)(μ-O2CCH3)(O2CCF 3)]•0.25bpe•1.75H2O (2) in three weeks; finally compound 2 rearranges to [Pb(μ-bpe)(O2CCH3)(O 2CCF3)] (3) in the fourth week. Compound 3 has a molecular fabric-like interwoven structure formed by spiral one-dimensional (1D) coordination polymeric chains. Reaction of bpe with Pb(O2CCF 3)2 and Pb(OAc)2•3H2O respectively in equimolar ratio produces [Pb(μ-bpe)(μ-O 2CCF3)2] (4) and [Pb(μ-bpe)(O 2CCH3)2]•0.25H2O (5). The compound 4 is a three-dimensional (3D) CP with a 42.6 3.8-sra (SrAl2) topology, whereas 5 has a double-stranded structure with Pb(II)•••π (pyridyl) interactions between 1D chains. The compounds [Pb(μ-bpe)(μ-O2CCH3)(O 2CCF3)]•0.25bpe (2a), 4, and 5 have been characterized by X-ray crystallography, while 1 and 3 were reported before. The factors influencing the rearrangement of CPs in solution have been discussed. The structural topological features observed in 2a, 4, and 5 have been attributed to the coordination preference of the Pb(II) and the carboxylate ligands.

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U2 - 10.1021/cg201071y

DO - 10.1021/cg201071y

M3 - Article

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SN - 1528-7483

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JF - Crystal Growth and Design

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ER -

Structural transformations of Pb(II)- trans -1,2-bis(4′-pyridyl) ethene coordination polymers in solution

Abstract

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