Thermal parameters of MgSO4·7H2O and NiSO4·7H2O crystals added with urea and thiourea

C.K. Mahadevan

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Thermal parameters of MgSO4·7H2O and NiSO4·7H2O crystals added with urea and thiourea

机译：添加了尿素和硫脲的MgSO4·7H2O和NiSO4·7H2O晶体的热学参数

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Pure and impurity-added (with urea and thiourea) MgSO4·7H2O and NiSO4·7H2O single crystals were grown by the free-evaporation method from aqueous solutions. Density was measured by the flotation method. X-ray diffraction data were collected for powder samples and used for the estimation of thermal parameters like Debye–Waller factor, mean-square amplitude of vibration, Debye temperature and Debye frequency. The thermal parameters do not vary in a particular order with respect to impurity concentration, which could be attributed to the random disturbance created by the impurity molecules in the hydrogen-bonding system of the MgSO4·7H2O and NiSO4·7H2O lattices.

机译：通过自由蒸发法从水溶液中生长出纯净的，添加了杂质（含尿素和硫脲）的MgSO4·7H2O和NiSO4·7H2O单晶。通过浮选法测量密度。收集粉末样品的X射线衍射数据，并将其用于估算热参数，如德拜-沃勒因子，振动的均方振幅，德拜温度和德拜频率。热参数相对于杂质浓度没有特定的顺序变化，这可以归因于由MgSO4·7H2O和NiSO4·7H2O晶格的氢键系统中的杂质分子产生的随机干扰。

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《Physica, B. Condensed Matter》 |2008年第18期|共4页
作者
C.K. Mahadevan;
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正文语种 eng
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MgSO4·7H2O crystals; NiSO4·7H2O crystals; X-ray diffraction analysis; Debye–Waller factors; Debye temperatures; Debye frequencies;

机译：MgSO4·7H2O晶体;NiSO4·7H2O晶体;X射线衍射分析;德拜-沃勒因子;德拜温度;德拜频率;

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1. Thermal parameters of MgSO4·7H2O and NiSO4·7H2O crystals added with urea and thiourea [J] . C.K. Mahadevan Physica, B. Condensed Matter . 2008,第18期

机译：添加了尿素和硫脲的MgSO4·7H2O和NiSO4·7H2O晶体的热学参数
2. Luminescence and Crystal Field Parameters of the Na3[Eu(ODA)3]?¤7H2O Complex in Single Crystalline State [J] . Jong-Goo Kim, Jun-Gill Kang, Soo-Kyung Yoon, Bulletin of the Korean Chemical Society . 1997,第8期

机译：Na3 [Eu（ODA）3]？¤7H2O配合物单晶态的发光和晶体场参数
3. Synthesis, optical, thermal and second harmonic generation studies of pure, urea and thiourea doped organic _L-tartaric acid-nicotinamide (LTN) crystals [J] . T. Prasanyaa, V. Jayaramakrishnan, M. Haris Optik: Zeitschrift fur Licht- und Elektronenoptik: = Journal for Light-and Electronoptic . 2014,第2期

机译：纯，尿素和硫脲掺杂的有机_L-酒石酸-烟酰胺（LTN）晶体的合成，光学，热和二次谐波研究
4. Temperature dependent effect of dissolved CO2 on crystallization: case study with MgSO4· 7H2O [C] . J.Huang, Q.Yin, J.Ulrich International Forum on Leading Edge Technologies on Crystallization Engineering and Pharmaceutics Development;Tianjin University;Tianjin Medical University . -1

机译：溶解二氧化碳对结晶的温度依赖性作用：MgSO4·7H2O的情况
5. I. Synthesis and anion recognition of preorganized colorimetric urea/thiourea compounds and their reference receptors, and II. The selective reactions of chlorosilanes: Applications for dendritic and degradable materials. [D] . Jennings, Abby Rose. 2014

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6. Hydrogen bonding in the crystal structure of phurcalite Ca2(UO2)3O2(PO4)2·7H2O: single-crystal X-ray study and TORQUE calculations [O] . Jakub Plášil, Boris Kiefer, Seyedat Ghazisaeed, -1

机译：钙铁矿Ca2 （UO2）3O2（PO4）2·7H2O晶体结构中的氢键：单晶X射线研究和TORQUE计算
7. NiSO4·7H2O : An Efficient and Eco-friendly Catalyst for the One-pot Synthesis of Dihydropyrimidin-2(1H)-ones [O] . 2009

机译：NISO4·7H2O：用于二氢嘧啶-2（1H） - 酮的单罐合成的高效和生态友好型催化剂

Thermal parameters of MgSO4·7H2O and NiSO4·7H2O crystals added with urea and thiourea

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