title: Exploring the interplay between ligand derivatisation and cation type in the assembly of hybrid polyoxometalate Mn-Andersons.
abstract: Herein a library of hybrid Mn-Anderson polyoxometalates anions are presented: 1, [(MnMo6 O18 )((OCH2 )3 -C-(CH2 )7 CHCH2 )2 ](3-) ; compound 2, [(MnMo6 O18 )((OCH2 )3 C-NHCH2 C16 H9 )2 ](3-) ; compound 3, [(MnMo6 O18 )((OCH2 )3 C-(CH2 )7 CHCH2 )1 ((OCH2 )3 C-NHCH2 C16 H9 )1 ](3-) ; compound 4, [(MnMo6 O18 )((OCH2 )3 C-NHC(O)CH2 CHCH2 )2 ](3-) and compounds 5-9, [(MnMo6 O18 )((OCH2 )3 C-NHC(O)(CH2 )x CH3 )2 ]), where x = 4, 10, 12, 14, and 18 respectively. The compounds resulting from the cation exchange of the anions 1-9 to give TBA (a) and DMDOA (b) salts, and additionally for compounds 1, 2 and 3, tetraphenylphosphonium (PPh4 ) (c) salts, are explored at the air/water interface using scanning force microscopy, showing a range of architectures including hexagonal structures, nanofibers and other supramolecular forms. Additionally the solid-state structures for compounds 1c, 2c, 4a, 6a, 9a, are presented for the first time and these investigations demonstrate the delicate interplay between the structure of the covalently derivatised hybrid organo-clusters as well as the ion-exchange cation types.
authors: WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
authors: Mali H
authors: MH
authors: Rosnes
authors: Chiara
authors: C
authors: Musumeci
authors: Carine
authors: C
authors: Yvon
authors: Andrew
authors: A
authors: Macdonell
authors: Chullikkattil P
authors: CP
authors: Pradeep
authors: Camillo
authors: C
authors: Sartorio
authors: De-Liang
authors: DL
authors: Long
authors: Bruno
authors: B
authors: Pignataro
authors: Leroy
authors: L
authors: Cronin
keywords: atomic force microscopy; cation exchange; crystal engineering; hybrid organic-inorganic polyoxometalates; self-assembly