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note
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3. A colorless crystal of dimensions 0.43×0.37×0.29 mm was used for measurement at 296 (2) K with the ω scan mode on a diffractometer with CCD detector using Mo Ka radiation (λ = 0.71073 A). The final cycle of full matrix least- squares refinement was based on 6368 independent reflections [I >2(I)] and 361 variable parameters with R1 = 0.0643, wR2 =0.1816.
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