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Two-step synthesis of heterometallic coordination polymers using a polyazamacrocyclic linker

AuthorsAríñez-Soriano, Javier; Albalad, Jorge ; Pérez-Carvajal, Javier ; Imaz, Inhar ; Busqué, Félix; Juanhuix, Jordi; Maspoch, Daniel
Issue Date2016
PublisherRoyal Society of Chemistry (UK)
CitationCrystEngComm 18(22): 4196-4204 (2016)
AbstractA new macrocyclic linker 1,4,7,10-tetraazacyclododecane-1,7-bis(4-acetamidobenzoic)-4,10-diacetic acid (HL1) was synthesized and characterized. This linker was used to create two heterometallic coordination polymers following a two-step synthesis. This synthesis consisted of first combining this polyazamacrocyclic linker with Ni(ii) or Mn(ii) ions to obtain the corresponding metallomacrocyclic complexes showing non-coordinated carboxylic groups. In a second step, these metallated macrocycles were used as building units to construct two heterometallic Ni(ii)-Zn(ii) and Mn(ii)-Zn(ii) coordination polymers when combined with Zn(ii) ions. In addition, a third Zn(ii)-Zn(ii) coordination polymer could also be synthesized by direct mixing of HL1 with Zn(ii) ions. Interestingly, the Mn(ii)-Zn(ii) coordination polymer exhibits a reversible type-I >crystal-to-amorphous transformation> upon water sorption/desorption.
Identifiersdoi: 10.1039/C5CE02520F
e-issn: 1466-8033
Appears in Collections:(CIN2) Artículos
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