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| 005 | 20250321070831.0 | ||
| 008 | 250321b |||||||| |||| 00| 0 eng d | ||
| 022 | _a09743626 | ||
| 040 |
_aMSU _bEnglish _cMSU _erda |
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| 050 | 0 | 0 | _aQD31 JOU |
| 100 | 1 |
_aTighadouini, Said _eauthor |
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| 245 | 1 | 0 |
_aOrigin and switch of different colors : _bthermo-isomerism and crystal structure of (1E,2E)-bis[1-(4-nitrophenyl)ethylidene] hydrazine / _ccreated by Said Tighadouini, Smaail Radi, Loic Toupet, Muhammad Sirajuddin, Taibi Ben Hadda, Mehmet Akkurt, Ismail Warad, Yahia N. Mabkhot and Saqib Ali |
| 264 | 1 |
_aBangalore : _bSpringer, _c2015. |
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| 336 |
_2rdacontent _atext _btxt |
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| 337 |
_2rdamedia _aunmediated _bn |
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| 338 |
_2rdacarrier _avolume _bnc |
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| 440 |
_aJournal of chemical sciences _vVolume 127, number 12, |
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| 520 | 3 | _aA new symmetric branched 4-nitrophenyl hydrazine compound has been prepared in one-step procedure by direct condensation of aromatic ketone with hydrazine in MeOH. The synthesized compound, red isomer, was characterized by IR, 1H and 13C NMR spectroscopy, Elemental analyses, Mass spectrometry and X-ray crystallography. Refluxing in MeOH solution led to thermo-isomerism offering a white isomer product that was characterized by X-ray crystallography. The red isomer crystallizes in the orthorhombic system having space group Pbcn, with a = 12.7612(4), b = 11.5197(3), c = 20.1586(7) Å, V = 2963.42(16) Å 3, Z = 8 while the white isomer crystallizes in the triclinic system having space group P −1, with a = 7.8007(4), 8.5966(7), 12.224 (1) Å, α= 71.133(7), β= 81.281(5), γ= 74.895(5) ∘, V = 746.86(9) Å 3, Z = 2. Molecules of both compounds are twisted at N2–N3 bond with the C7-N2-N3-C9 torsion angle of 155.23(12) and −113.36(18) ∘, respectively. The crystal structures of both compounds are stabilized by weak intramolecular C—H …N contacts and intermolecular C—H …O hydrogen bonding interactions. In addition, π– π stacking interactions are observed between the same aromatic rings of molecules. | |
| 650 |
_aHydrazine derivative _vCrystal structure _xThermo-isomerism |
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| 700 | 1 |
_aRadi, Smaail _eco author |
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| 700 | 1 |
_aToupet, Loic _eco author |
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| 700 | 1 |
_aSirajuddin, Muhammad _eco author |
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| 700 | 1 |
_aHadda, Taibi Ben _eco author |
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| 700 | 1 |
_aAkkurt, Mehmet _eco author |
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| 700 | 1 |
_aWarad, Ismail _eco author |
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| 700 | 1 |
_aMabkhot, Yahia N. _eco author |
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| 700 | 1 |
_aAli, Saqib _eco author |
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| 856 | _uhttps://doi.org/10.1007/s12039-015-0992-x | ||
| 942 |
_2lcc _cJA |
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| 999 |
_c169426 _d169426 |
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