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Long rigid ligand induced basket-type phosphomolybdate photo-/electro-catalytic materials
Ist Teil von
New journal of chemistry, 2018, Vol.42 (24), p.19528-19536
Ort / Verlag
Cambridge: Royal Society of Chemistry
Erscheinungsjahr
2018
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Long rigid ligand induced two basket-type inorganic–organic hybrid materials, (H
4
btb)
2
[Sr⊂P
6
MoV2MoVI16O
73
]·2H
2
O (
1
) and (H
4
bbtb)(H
2
bbtb)
4
[{Fe
III
(H
2
O)
4
Na(H
2
O)
2
}{Sr⊂P
6
MoV2MoVI16O
73
}
2
]·2H
2
O (
2
) (btb = 4,4-bis(1-H-1,2,4-triazol-1-yl)biphenyl, bbtb = 1,4-bis(benzotriazol-1-3-ly) benzene), have been hydrothermally synthesized and fully characterized. Compounds
1
and
2
contain 2-electron reduced basket-type polyoxoanion {Sr⊂P
6
MoV2MoVI16O
73
} (abbreviated as {P
6
Mo
18
O
73
}) as a basic cluster unit. In compound
1
, adjacent btb molecules are parallel to each other and interconnect
via
π–π interactions to form two kinds of dimeric ligand units, which are further linked alternately
via
weak interactions to yield a unique pure organic double chain. The basket cluster grafts onto the chain in the ABAB mode
via
intensive hydrogen bond interactions leading to an organic–inorganic supramolecular layer along the [011] direction. Meanwhile, each basket polyoxoanion connects to two adjacent basket cages
via
supramolecular interactions to form a 1D supramolecular chain along the [001] direction. The 2D layer and 1D chains intersect with each other to form a 3D network with basket cages as junctions. Compound
2
is a dimeric string connected by {Na(H
2
O)
2
} and {Fe(H
2
O)
4
} units, and is the first basket dimer chain linked by a mixed metal linker. The protonated ligand bbtb connects adjacent dimeric chains to yield a 2D supramolecular layer and a 3D network
via
extensive supramolecular interactions. They display dual functions of electrocatalytic properties and efficient photocatalytic performance for the degradation of refractory dye Azon Phloxine (AP) under UV light.