1987
DOI: 10.1002/zaac.19875470418
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Salze und Ester der 1,2‐Hydrazin‐bis(thiocarbonsäure) Kristallstrukturen von K2[OSCN2H2CSO] · 2 H2O, CH3SCON2H2COSCH3 und CH3OCSN2H2CSOCH3 bei 140 K

Abstract: Das Anion von K2[OSCN2H2CSO] · 2 H2O, sowie die Moleküle CH3SCON2H2COSCH3 und CH3OCSN2H2CSOCH3 besitzen im festen Zustand nichtplanare Konformationen. Die Diederwinkel zwischen den beiden jeweils planaren Molekülhälften betragen 78,8°, 77,5° bzw. 104,5°. Die NN‐Bindungslänge beträgt übereinstimmend in den drei Verbindungen etwa 138,5 pm. Die NH‐Gruppen sind an Wasserstoffbrückenbindungen beteiligt.

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“…Biurea (X = NH) adopts the csc conformation, which was characterized as a minimum in the gas-phase for NdAH. Much more interesting are the compounds with X = S (dipotassium 1,2-hydrazine-bis(monothiocarboxylate) dihydrate, S , S ‘-dimethyl 1,2-hydrazine-bis(monothiocarboxylate) 30 ) or X = O (1,2-hydrazinedicarboxylic acid diethyl ester, N , N ‘-bis(( p -chlorophenoxy)carbonyl)hydrazine dihydrate) since they present the predicted lowest energy conformation tgt. More specifically, the torsion angle associated to the NH−NH bond ranges in absolute values from 73° to 91°.…”
Section: Resultsmentioning
confidence: 99%
“…Biurea (X = NH) adopts the csc conformation, which was characterized as a minimum in the gas-phase for NdAH. Much more interesting are the compounds with X = S (dipotassium 1,2-hydrazine-bis(monothiocarboxylate) dihydrate, S , S ‘-dimethyl 1,2-hydrazine-bis(monothiocarboxylate) 30 ) or X = O (1,2-hydrazinedicarboxylic acid diethyl ester, N , N ‘-bis(( p -chlorophenoxy)carbonyl)hydrazine dihydrate) since they present the predicted lowest energy conformation tgt. More specifically, the torsion angle associated to the NH−NH bond ranges in absolute values from 73° to 91°.…”
Section: Resultsmentioning
confidence: 99%