Abstract
A tetracarboxylic acid with a methyl-substituted siloxane core (L-H4) has been prepared and applied in the construction of water stable MOFs with low water affinity. L-H4 itself crystallizes as an interpenetrated 3D hydrogen-bonded network. Reaction of L-H4 with ZrIV/HfIV gave IMP-32-Zr/Hf - both 3D MOFs of scu topology.
Highlights
A tetracarboxylic acid with a methyl-substituted siloxane core (L-H4) has been prepared and applied in the construction of water stable Metal–organic frameworks (MOFs) with low water affinity
Stable metal–organic frameworks with low water affinity built from methyl-siloxane linkers†
Silicones are well known for their hydrophobic properties,[18] and studies of post-synthetic incorporation of silicone units in MOF materials [either by particle coating[6,7,8] or functionalization of secondary building units (SBUs)19] suggests that such an approach may successfully lead to low water affinity materials
Summary
Stable metal–organic frameworks with low water affinity built from methyl-siloxane linkers† A tetracarboxylic acid with a methyl-substituted siloxane core (L-H4) has been prepared and applied in the construction of water stable MOFs with low water affinity.
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