Studies on TMPD:TCNB; a donor-acceptor with room temperature paramagnetism and n-π interaction

Prasanna S. Ghalsasi; Brant Cage; J. L. Yarger

doi:10.3390/90900808

Studies on TMPD:TCNB; a donor-acceptor with room temperature paramagnetism and n-π interaction

Prasanna S. Ghalsasi, Brant Cage, J. L. Yarger

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

7 Scopus citations

Abstract

A donor-acceptor compound based on N,N,N′N′-tetramethyl-p- phenylenediamine and 1,2,4,5-tetracyanobenzene (TMPD:TCNB) has been synthesized. The crystal structure of the black 1:1 complex formed between TMPD and TCNB has been determined by single crystal X-ray diffraction at room temperature. The compound crystallizes in the triclinic space group P-1 with cell dimensions: a = 7.4986(15) Å, b = 7.6772(11) Å, c = 8.0764(15) Å, α = 78.822(12)°, β = 83.3779(19)°, γ = 86.289(17)°. TMPD and TCNB molecules are stacked alternately in infinite columns along the a-axis. The structure does not seem to show the usual π-π interaction between the two aromatic rings, but indicates an n-π interaction localized between the nitrogen atoms of the donor and the cyano groups of the acceptor.

Original language	English (US)
Pages (from-to)	808-814
Number of pages	7
Journal	Molecules
Volume	9
Issue number	9
DOIs	https://doi.org/10.3390/90900808
State	Published - Sep 2004
Externally published	Yes

Keywords

Charge transfer complex
Donor-Acceptor
Magnetism

ASJC Scopus subject areas

Analytical Chemistry
Chemistry (miscellaneous)
Molecular Medicine
Pharmaceutical Science
Drug Discovery
Physical and Theoretical Chemistry
Organic Chemistry

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10.3390/90900808

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title = "Studies on TMPD:TCNB; a donor-acceptor with room temperature paramagnetism and n-π interaction",

abstract = "A donor-acceptor compound based on N,N,N′N′-tetramethyl-p- phenylenediamine and 1,2,4,5-tetracyanobenzene (TMPD:TCNB) has been synthesized. The crystal structure of the black 1:1 complex formed between TMPD and TCNB has been determined by single crystal X-ray diffraction at room temperature. The compound crystallizes in the triclinic space group P-1 with cell dimensions: a = 7.4986(15) {\AA}, b = 7.6772(11) {\AA}, c = 8.0764(15) {\AA}, α = 78.822(12)°, β = 83.3779(19)°, γ = 86.289(17)°. TMPD and TCNB molecules are stacked alternately in infinite columns along the a-axis. The structure does not seem to show the usual π-π interaction between the two aromatic rings, but indicates an n-π interaction localized between the nitrogen atoms of the donor and the cyano groups of the acceptor.",

keywords = "Charge transfer complex, Donor-Acceptor, Magnetism",

author = "Ghalsasi, {Prasanna S.} and Brant Cage and Yarger, {J. L.}",

year = "2004",

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doi = "10.3390/90900808",

language = "English (US)",

volume = "9",

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T1 - Studies on TMPD:TCNB; a donor-acceptor with room temperature paramagnetism and n-π interaction

AU - Ghalsasi, Prasanna S.

AU - Cage, Brant

AU - Yarger, J. L.

PY - 2004/9

Y1 - 2004/9

N2 - A donor-acceptor compound based on N,N,N′N′-tetramethyl-p- phenylenediamine and 1,2,4,5-tetracyanobenzene (TMPD:TCNB) has been synthesized. The crystal structure of the black 1:1 complex formed between TMPD and TCNB has been determined by single crystal X-ray diffraction at room temperature. The compound crystallizes in the triclinic space group P-1 with cell dimensions: a = 7.4986(15) Å, b = 7.6772(11) Å, c = 8.0764(15) Å, α = 78.822(12)°, β = 83.3779(19)°, γ = 86.289(17)°. TMPD and TCNB molecules are stacked alternately in infinite columns along the a-axis. The structure does not seem to show the usual π-π interaction between the two aromatic rings, but indicates an n-π interaction localized between the nitrogen atoms of the donor and the cyano groups of the acceptor.

AB - A donor-acceptor compound based on N,N,N′N′-tetramethyl-p- phenylenediamine and 1,2,4,5-tetracyanobenzene (TMPD:TCNB) has been synthesized. The crystal structure of the black 1:1 complex formed between TMPD and TCNB has been determined by single crystal X-ray diffraction at room temperature. The compound crystallizes in the triclinic space group P-1 with cell dimensions: a = 7.4986(15) Å, b = 7.6772(11) Å, c = 8.0764(15) Å, α = 78.822(12)°, β = 83.3779(19)°, γ = 86.289(17)°. TMPD and TCNB molecules are stacked alternately in infinite columns along the a-axis. The structure does not seem to show the usual π-π interaction between the two aromatic rings, but indicates an n-π interaction localized between the nitrogen atoms of the donor and the cyano groups of the acceptor.

KW - Charge transfer complex

KW - Donor-Acceptor

KW - Magnetism

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JF - Molecules

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ER -

Studies on TMPD:TCNB; a donor-acceptor with room temperature paramagnetism and n-π interaction

Abstract

Keywords

ASJC Scopus subject areas

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