کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1492667 | 992407 | 2006 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystal structure, thermal analysis and IR spectrometric investigation of l-tyrosine hydrazide diphosphate monohydrate
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The monoclinic crystal structure of (C9H15N3O2)2P2O7·H2O denoted DLTHDP [a = 14.626(1), b = 6.1990(2), c = 14.562(1) Ã
, β = 97.289(3)°, Z = 2, monoclinic P21, Dcal = 1.508, Dmes = 1.49 g cmâ3] has been solved using direct methods and refined to a reliability factor R = 4.37% for 2079 independent reflections. The DLTHDP structure can be described by infinite polyanions [P2O7·H2O]n4nâ organized in chains parallel to the b-direction and located at z = 1/2, alternating with organic cations associated in ribbons spreading along the a-direction. Multiple hydrogen bonds originating from amine, hydroxyl groups and water molecules donors [NHâ¦O(N) and O(W)Hâ¦O] connect the different components of the lattice. The IR data of DLTHDP is reported and discussed according to the theoretical group analysis and by comparison with IR results of similar compounds. The coupled thermogravimetric analysis (TGA)-differential thermal analysis (DTA) thermal study shows the departure of one water molecule, confirming the hydrated character of this compound.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 41, Issue 11, 9 November 2006, Pages 2024-2034
Journal: Materials Research Bulletin - Volume 41, Issue 11, 9 November 2006, Pages 2024-2034
نویسندگان
A. Gharbi, T. Guerfel, A. Jouini,