Synthesis, structure and properties of the first organic amine-templated vanadyl pyrophosphate containing two types of helical chains

• Compound 1 is the first organic amine templated vanadyl pyrophosphate.
• Compound 1 was synthesized at a relatively mild temperatures without any pyrophosphates.
• There are two types of P-O-V helical chains in the structure of 1.
• Magnetic susceptibility measurement of 1 indicates antiferromagnetic interactions between V4+ ions.

The first organic amine templated vanadyl pyrophosphate, [H2N(CH3)2]2VO(P2O7) (1), has been synthesized at a relatively mild temperature (180 °C) under solvothermal conditions without any pyrophosphates. The structural analysis reveals that compound 1 is constructed by two types of helical chains and protonated dimethylamine cations. Two types of helical chains in 1 are connected through OVO linkages to make a double wave-like [VOP2O7]n chain. Magnetic susceptibility measurement of compound 1 indicates antiferromagnetic interactions between V4 + ions, while the observed SHG efficiency is 0.4 times of urea for 1.

The compound, [H2N(CH3)2]2VO(P2O7) (1), has been synthesized at a relatively mild temperatures (180 °C) under solvothermal conditions without any pyrophosphates. The structural analysis reveals that two types of helical chains in 1 are connected through OVO linkages to make a double wave-like [VOP2O7]n chain. The observed SHG efficiency is 0.4 times of urea for 1.Figure optionsDownload as PowerPoint slide