3-Iodo-1H-pyrazolo[3,4-b]pyridine
نویسندگان
چکیده
The title compound, C6H4IN3, is essentially planar, with a dihedral angle of 0.82 (3)° between the planes of the pyridine and pyrazole rings. In the crystal, pairs of mol-ecules are connected into inversion dimers through N-H⋯N hydrogen bonds. C-I⋯N halogen bonds link the dimers into zigzag chains parallel to the b-axis direction. The packing also features π-π stacking inter-actions along (110) with inter-planar distances of 3.292 (1) and 3.343 (1) Å, and centroid-centroid distances of 3.308 (1) and 3.430 (1) Å.
منابع مشابه
3,4,6-Trimethyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine
In the title compound, C(15)H(15)N(3), the 1H-pyrazolo-[3,4-b]pyridine system and the phenyl ring are each individually planar, with r.m.s. deviations of 0.017 (2) and 0.011 (2) Å, respectively; the dihedral angle between the two aromatic systems is 9.33 (10)°. The crystal packing is stabilized by offset π-π stacking between parallel pyrazolo-[3,4-b]pyridine ring systems [face-to-face distance ...
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In the title mol-ecule, C(23)H(17)N(3), the phenyl substituents at positions 1 and 4 are twisted relative to the central core by 27.09 (5) and 66.62 (4)°, respectively. In the crystal, mol-ecules are assembled into centrosymmetric dimers via π-π stacking inter-actions between the 1H-pyrazolo-[3,4-b]quinoline -units, with an inter-planar distance of 3.601 (2) Å and by weak inter-molecular C-H⋯N ...
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The 1H-pyrazolo-[3,4-b]quinoline (PQ) core of the title mol-ecule, C(23)H(14)F(3)N(3), is aromatic and essentially planar (r.m.s. deviation = 0.015 Å) and the two phenyl substituents at positions 1 and 3 are twisted relative to this fragment by 29.74 (7) and 25.63 (7)°, respectively. In the crystal, mol-ecules are arranged along the b axis into stacks via π-π inter-actions, with an inter-planar...
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