Structure of the incommensurate phase in thiourea.

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On the symmetry properties of the incommensurate phase in thiourea

The symmetry analysis of the incommensurate modulated phase of thiourea reported in [J. Physique 46 (1985) 2187-2195] is revised. Some of its conclusions overstating the relevance of secondary modes for describing the symmetry properties of the modulation are corrected. J. Physique 48 (1987) 2019-2021 NOVEMBRE 1987, Classification Physics Abstracts 64.90 61.50K 64.70K

متن کامل

Dielectric anomalies in the incommensurate phase of urea-doped thiourea

2014 Complex dielectric constant has been measured in the modulated phase of a OC(ND2)2-doped SC(ND2)2 single crystal. One can expect that the introduction of doping molecules strongly disturb the chains of hydrogen bonds in such a way that the modulated wave should be affected. In the incommensurate phase a new kind of memory effect is observed and when the variation of temperature is very slo...

متن کامل

the role of thematic structure in comprehending spoken language

in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...

15 صفحه اول

the effects of changing roughness on the flow structure in the bends

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

An incommensurate thiourea inclusion compound.

X-Ray diffraction studies reveal that the tunnel inclusion compound formed between 1-tert-butyl-4-iodobenzene and thiourea has an incommensurate relationship between the periodicities of the host and guest substructures along the tunnel axis, representing the first reported case of an incommensurate thiourea inclusion compound.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nihon Kessho Gakkaishi

سال: 1989

ISSN: 0369-4585,1884-5576

DOI: 10.5940/jcrsj.31.6_283