Porphyrins and metalloporphyrins as field-responsive materials
type: CreativeWork
description: {\it Part I}. {\it Metalloporphyrin coordination polymers}. One-dimensional coordination polymers of metalloporphyrins with non-symmetric bridging ligands have been synthesized as candidates for molecular ferroelectric materials. These include the iron(II) porphyrinate polymer: \lbrack Fe$\sp{\rm II}$(TPP)(pyCN)\rbrack$\sb\infty$ (where TPP = 5,10,15,20-tetraphenylporphyrinate(2$-$); pyCn = 4-cyanopyridine); iron(III) porphyrinate polymers: \lbrack Fe$\sp{\rm III}$(TPP)(4-MeIm)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(4-PhIm)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(pyCO$\sb2$)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(OpyCO$\sb2$)\rbrack$\sb\infty$, and \lbrack Fe$\sp{\rm III}$(TPP)(ImPhO)\rbrack$\sb\infty$ (where 4-MeIm = 4-methylimidazolate; 4-PhIm = 4-phenylimidazolate; pyCO$\sb2\sp-$ = pyridine-4-carboxylate; OpyCO$\sb2\sp-$ = pyridine-4-carboxylate N-oxide; ImPhO$\sp-$ = 4-(imidazol-1-yl)phenoxide); tin(IV) porphyrinate polymers: \lbrack Sn$\sp{\rm IV}$(TPP)(ntp)\rbrack$\sb\infty$ and \lbrack Sn$\sp{\rm IV}$(TPP)(cnp)\rbrack$\sb\infty$ (where ntp = nitroterephthalate; cnp = 4-carboxyl-2-nitrophenoxide). The single-crystal X-ray structures were solved for \lbrack Fe$\sp{\rm II}$(TPP)(pyCN)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(pyCO$\sb2$)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(OpyCO$\sb2$)\rbrack$\sb\infty$, and Fe$\sp{\rm III}$(TPP)(ImPhO)\rbrack$\sb\infty$. The chain alignment of the bridging ligand is disordered in \lbrack Fe$\sp{\rm II}$(TPP)(pyCN)\rbrack$\sb\infty$, anti-parallel in \lbrack Fe$\sp{\rm III}$(TPP)(pyCO$\sb2$)\rbrack$\sb\infty$ and \lbrack Fe$\sp{\rm III}$(TPP)(OpyCO$\sb2$)\rbrack$\sb\infty$, but polar in \lbrack Fe$\sp{\rm III}$(TPP)(ImPhO)\rbrack$\sb\infty$. \lbrack Fe$\sp{\rm III}$(TPP)(ImPhO)\rbrack$\sb\infty$ crystallizes in a non-centrosymmetric space group, $Pna2\sb1$.
abstract: {\it Part I}. {\it Metalloporphyrin coordination polymers}. One-dimensional coordination polymers of metalloporphyrins with non-symmetric bridging ligands have been synthesized as candidates for molecular ferroelectric materials. These include the iron(II) porphyrinate polymer: \lbrack Fe$\sp{\rm II}$(TPP)(pyCN)\rbrack$\sb\infty$ (where TPP = 5,10,15,20-tetraphenylporphyrinate(2$-$); pyCn = 4-cyanopyridine); iron(III) porphyrinate polymers: \lbrack Fe$\sp{\rm III}$(TPP)(4-MeIm)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(4-PhIm)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(pyCO$\sb2$)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(OpyCO$\sb2$)\rbrack$\sb\infty$, and \lbrack Fe$\sp{\rm III}$(TPP)(ImPhO)\rbrack$\sb\infty$ (where 4-MeIm = 4-methylimidazolate; 4-PhIm = 4-phenylimidazolate; pyCO$\sb2\sp-$ = pyridine-4-carboxylate; OpyCO$\sb2\sp-$ = pyridine-4-carboxylate N-oxide; ImPhO$\sp-$ = 4-(imidazol-1-yl)phenoxide); tin(IV) porphyrinate polymers: \lbrack Sn$\sp{\rm IV}$(TPP)(ntp)\rbrack$\sb\infty$ and \lbrack Sn$\sp{\rm IV}$(TPP)(cnp)\rbrack$\sb\infty$ (where ntp = nitroterephthalate; cnp = 4-carboxyl-2-nitrophenoxide). The single-crystal X-ray structures were solved for \lbrack Fe$\sp{\rm II}$(TPP)(pyCN)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(pyCO$\sb2$)\rbrack$\sb\infty$, \lbrack Fe$\sp{\rm III}$(TPP)(OpyCO$\sb2$)\rbrack$\sb\infty$, and Fe$\sp{\rm III}$(TPP)(ImPhO)\rbrack$\sb\infty$. The chain alignment of the bridging ligand is disordered in \lbrack Fe$\sp{\rm II}$(TPP)(pyCN)\rbrack$\sb\infty$, anti-parallel in \lbrack Fe$\sp{\rm III}$(TPP)(pyCO$\sb2$)\rbrack$\sb\infty$ and \lbrack Fe$\sp{\rm III}$(TPP)(OpyCO$\sb2$)\rbrack$\sb\infty$, but polar in \lbrack Fe$\sp{\rm III}$(TPP)(ImPhO)\rbrack$\sb\infty$. \lbrack Fe$\sp{\rm III}$(TPP)(ImPhO)\rbrack$\sb\infty$ crystallizes in a non-centrosymmetric space group, $Pna2\sb1$.
author: Chen, Chin-Ti
language: eng
keywords: Chemistry, Inorganic, Chemistry, Organic
date published: 2011-05-07T13:21:21Z
date modified: 2026-07-22T22:25:18Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/21859