A New Polymorph of 4-Pyridinethione Containing a Helical Assembly Based on N-H…S Hydrogen Bonds

Sebastian Muthu; Jagadese J.Vittal

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A New Polymorph of 4-Pyridinethione Containing a Helical Assembly Based on N-H…S Hydrogen Bonds

机译：基于N-H…S氢键的包含吡啶分子的4-吡啶硫酮的新多晶型物

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Tautomerization of 4-mercaptopyridine in absolute ethanol at two different temperatures leads to the formation of two polymorphs.In the polymorph 1,obtained by refluxing the ethanolic solution of 4-mercaptopyridine and layering with ether,the molecules are arranged in a helical conformation through N-H…S hydrogen bonds.On the other hand,the previously reported polymorph 2 is an N-H…S bonded zigzag chain and can be prepared by layering an ethanolic solution of 4-pyridinethione with ether at 5 deg C.Apart from the different structural motifs,N-H…S,C-H…S hydrogen bonds,pi-pi and C-H…piinteractions make a significant difference between the two structures.Both polymorphs exhibit solid-state photoluminescence due to pi…pi transition.

机译：4-巯基吡啶在无水乙醇中在两个不同温度下互变异构导致形成两个多晶型物。在多晶型物1中，通过回流4-巯基吡啶的乙醇溶液并与醚分层获得，分子通过NH呈螺旋构象排列…S氢键。另一方面，先前报道的多晶型物2是NH…S键合的锯齿形链，可以通过在4摄氏度下将4-吡啶硫酮的乙醇溶液与乙醚分层来制备。 NH…S，CH…S氢键，pi-pi和CH ... pi相互作用在两个结构之间产生显着差异。两种多晶型物均由于pi ... pi跃迁而表现出固态光致发光。

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《Crystal growth & design》 |2004年第6期|共4页
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Sebastian Muthu; Jagadese J.Vittal;
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1. A New Polymorph of 4-Pyridinethione Containing a Helical Assembly Based on N-H…S Hydrogen Bonds [J] . Sebastian Muthu, Jagadese J.Vittal Crystal growth & design . 2004,第6期

机译：基于N-H…S氢键的包含吡啶分子的4-吡啶硫酮的新多晶型物
2. The first C(O)NHP(O)-based phosphoric triamide structure with an N-H center dot center dot center dot pi hydrogen bonding: A combination of X-ray crystallography and theoretical study to evaluate the strength of hydrogen bonds [J] . Taherzadeh Maryam, Pourayoubi Mehrdad, Afzali Raheleh, Phosphorus, Sulfur, and Silicon and the Related Elements . 2017,第7a9期

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3. Development of potential organic-molecule-based hydrogen storage materials: Converting C-N bond-breaking thermolysis of guanidine to N-H bond-breaking dehydrogenation [J] . Zhou Xiuquan, Zhou Wei, Udovic Terrence J., International journal of hydrogen energy . 2016,第41期

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4. HYDROGEN-BONDING BASED MULTILAYER ASSEMBLIES BY SELF-ADSORPTION OF DENDRIMER [C] . . -1

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5. Carbon-nitrogen bond formation via tandem carbon-hydrogen (C-H) and nitrogen-hydrogen (N-H) bond functionalization. [D] . Kantak, Abhishek A. 2014

机译：通过串联碳氢键（C-H）和氮氢键（N-H）官能化形成碳氮键。
6. Threefold helical assembly via hydroxy hydrogen bonds: the 2:1 co-crystal of bicyclo3.3.0octane-endo-3endo-7-diol and bicyclo3.3.0octane-endo-3exo-7-diol [O] . Isa Y. H. Chan, Mohan M. Bhadbhade, Roger Bishop 2021

机译：通过羟基氢键的三倍螺旋组装：2：1辛烷值-Nodo-3endo-7-二醇和双环3.3.0辛烷-Nodo-3EXO-7-二醇
7. A New Polymorph of 4-Pyridinethione Containing a Helical Assembly Based on N-H-S Hydrogen Bonds [O] . -1

机译：基于N-H-S氢键的螺旋组件的4-吡啶硫替苯胺的新多晶态
8. Hydrogen-Bond Polymorphs of Guanidinium 4-Biphenylsulfonate [R] . Russell, V. A., Etter, M. C., Ward, M. D. 1993

机译：4-联苯磺酸胍的氢键多晶型物

A New Polymorph of 4-Pyridinethione Containing a Helical Assembly Based on N-H…S Hydrogen Bonds

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