Compounds based on the [3 × 3] nonamanganese(II) square grid motif and featuring additional manganese(II) ions linked to the grid core were isolated through a strict self-assembly approach. Extended tritopic picolinic dihydrazide ligands were used, which contain terminal ester groups and differ in the R substituent on the para position of the central pyridine ring (H2L1, R = OCH3; H2L2, R = H). Upon reaction with Mn(OAc)2·4H2O, the ligand H2L1 undergoes hydrolysis and spontaneous self-assembly to afford [Mn10(L1′)6(H2O)5][Mn(H2O)6]2·11H2O, where a pentaaquomanganese(II) unit is connected to one of the terminal carboxylate functions of the grid through a Mn–O bond. The same reaction carried out with H2L2 affords an unprecedented 2D polymeric structure [Mn11(L2′)6(H2O)8][Mn(H2O)6]·24H2O, in which each nonamanganese grid is connected to its four neighbors through tetraaquomanganese(II) centers, again linked to the carboxylate functions. The two compounds also contain [Mn(H2O)6]2+ complexes in the lattice. These metallogrid-based compounds, for which DC magnetic data were collected and analysed in detail, emphasize the rich binding affinity and bridging versatility of the used ligands, which provide access to both discrete complexes and extended polymeric assemblies.

Expansion of a Discrete [3 × 3] Mn9 Metallogrid to a µ-Carboxylato-Bridged Polymeric {Mn11}n Assembly / Lakma, Avinash; Hossain, Sayed Muktar; Pradhan, Rabindra Nath; Topwal, Dinesh; Cornia, Andrea; Singh, Akhilesh Kumar. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - 2016:18(2016), pp. 2993-2999. [10.1002/ejic.201600153]

Expansion of a Discrete [3 × 3] Mn9 Metallogrid to a µ-Carboxylato-Bridged Polymeric {Mn11}n Assembly

CORNIA, Andrea;
2016

Abstract

Compounds based on the [3 × 3] nonamanganese(II) square grid motif and featuring additional manganese(II) ions linked to the grid core were isolated through a strict self-assembly approach. Extended tritopic picolinic dihydrazide ligands were used, which contain terminal ester groups and differ in the R substituent on the para position of the central pyridine ring (H2L1, R = OCH3; H2L2, R = H). Upon reaction with Mn(OAc)2·4H2O, the ligand H2L1 undergoes hydrolysis and spontaneous self-assembly to afford [Mn10(L1′)6(H2O)5][Mn(H2O)6]2·11H2O, where a pentaaquomanganese(II) unit is connected to one of the terminal carboxylate functions of the grid through a Mn–O bond. The same reaction carried out with H2L2 affords an unprecedented 2D polymeric structure [Mn11(L2′)6(H2O)8][Mn(H2O)6]·24H2O, in which each nonamanganese grid is connected to its four neighbors through tetraaquomanganese(II) centers, again linked to the carboxylate functions. The two compounds also contain [Mn(H2O)6]2+ complexes in the lattice. These metallogrid-based compounds, for which DC magnetic data were collected and analysed in detail, emphasize the rich binding affinity and bridging versatility of the used ligands, which provide access to both discrete complexes and extended polymeric assemblies.
2016
2016
18
2993
2999
Expansion of a Discrete [3 × 3] Mn9 Metallogrid to a µ-Carboxylato-Bridged Polymeric {Mn11}n Assembly / Lakma, Avinash; Hossain, Sayed Muktar; Pradhan, Rabindra Nath; Topwal, Dinesh; Cornia, Andrea; Singh, Akhilesh Kumar. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - 2016:18(2016), pp. 2993-2999. [10.1002/ejic.201600153]
Lakma, Avinash; Hossain, Sayed Muktar; Pradhan, Rabindra Nath; Topwal, Dinesh; Cornia, Andrea; Singh, Akhilesh Kumar
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1134849
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 6
social impact