2008
DOI: 10.1039/b811204e
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A metallopolymer case-history: polymer, ring or ligand reaction?

Abstract: Multinuclear cobalt(II) complexes of ditopic ligands with alpha,omega-dioxy spacers linking two tpy metal-binding domains react with alcohols to generate mononuclear 4'-alkoxy-species.

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Cited by 16 publications
(22 citation statements)
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“…6 30 The bi-exponential decay of [{Ru II -Zn II } n ] 4n+ can thus be the result of the polymer structure and may be due to some self quenching process between the excited state of the Ru(II) centers located in a close environment as a consequence of the folding of the polymer chain. The quenching rate constant (k q ) occurring in [{Ru II -M II } n ] 4n+ can be calculated according to eqn (8): 27 [{Ru II -M II } n ] 4n+ has been electrodeposited on the ITO electrode following the procedure described in the previous section. Such decay has been also observed when coordination complexes are part of the polymer backbone as with the [Re(CO) 2 (bpy)PP] n polymer where PP is a bidentate phosphorus ligand.…”
Section: Emission Propertiesmentioning
confidence: 99%
See 1 more Smart Citation
“…6 30 The bi-exponential decay of [{Ru II -Zn II } n ] 4n+ can thus be the result of the polymer structure and may be due to some self quenching process between the excited state of the Ru(II) centers located in a close environment as a consequence of the folding of the polymer chain. The quenching rate constant (k q ) occurring in [{Ru II -M II } n ] 4n+ can be calculated according to eqn (8): 27 [{Ru II -M II } n ] 4n+ has been electrodeposited on the ITO electrode following the procedure described in the previous section. Such decay has been also observed when coordination complexes are part of the polymer backbone as with the [Re(CO) 2 (bpy)PP] n polymer where PP is a bidentate phosphorus ligand.…”
Section: Emission Propertiesmentioning
confidence: 99%
“…The main advantages of these coordination polymers over conventional covalent ones come from the presence of metallic centers providing a wide variety of specic properties such as optical, electrical, redox, photochemical, magnetic or catalytical activities. 2,[8][9][10] Furthermore it has been shown that in general the average molecular weight of the resulting compounds depends strongly on time, concentration and temperature. A specic development in this area concerns the conception of soluble one-dimensional metallopolymers in which the polymeric skeleton is built-up by the in situ formation of a chain of coordination bonds resulting from an alternating incorporation of a metal ion in a polytopic bridging ligand.…”
Section: Introductionmentioning
confidence: 99%
“…We recently reported that in alcohol solvents, cobalt(II) complexes of ditopic ligands such as 1 (Scheme 1) can undergo reactions involving exchange of the alkoxy substituents. 1 This resulted in the isolation of a family of mononuclear homoleptic cobalt(II) complexes [CoL 2 ][PF 6 ] 2 in which L ¼ MeOtpy, EtOtpy and PrOtpy (Scheme 1). Structural data in the Cambridge Structural Database for complexes containing {Co(tpy) 2 } domains are currently restricted to 39 complexes (Conquest v. 5.30 with September 2009 updates).…”
Section: Introductionmentioning
confidence: 99%
“…Solvent was removed in vacuo from the solution, and [Co(tpy) 2 ][PF 6 ] 2 was isolated as a brown solid (0.153 g, 88%). 1 The following route is a convenient alternative to that published. 42 The method was as for [Co(tpy) 2 ][PF 6 ] 2 , starting with Cltpy (0.050 g, 0.19 mmol) and Co(OAc) 2 $4H 2 O (0.023 g, 0.094 mmol) in MeOH (10 cm 3 ) with a reaction time of 2 h. [Co(Cltpy) 2 ][PF 6 ] 2 was isolated as a brown solid (0.082 g, 99%).…”
Section: Introductionmentioning
confidence: 99%
“…Accordingly, the spin transitions of cobalt(II) complexes can be readily influenced by relatively minor ligand derivatisation. Constable et al have reported about the structure, solvent dependence and some other properties for [Co(MeO-terpy) 2 ](PF 6 ) 2 (2), 10,11 and Slattery et al have also reported about the magnetic behavior of 2 in solution. 12 We therefore measured the magnetic behavior of 2 in solid, and discovered that 2 shows gradual SCO.…”
mentioning
confidence: 99%