بررسی جانشین شدن یک یا دو w با یونهای فلزی m در آنیون mmo, cu, co, ni, fe, mn, zn و (nap5 w30 o110) 14

Hydrogen storage in the dehydrated prussian blue analogues M3[Co(CN)6]2 (M = Mn, Fe, Co, Ni, Cu, Zn).

The porosity and hydrogen storage properties for the dehydrated Prussian blue analogues M3[Co(CN)6]2 (M = Mn, Fe, Co, Ni, Cu, Zn) are reported. Argon sorption isotherms measured at 87 K afford BET surface areas ranging from 560 m2/g for Ni3[Co(CN)6]2 to 870 m2/g for Mn3[Co(CN)6]2; the latter value is comparable to the highest surface area reported for any known zeolite. All six compounds show s...

Syntheses and superstructures of ( Cd , MMP 04 ) 30 H ( M = Mn , Fe , Co , Ni , Cu , Hg )

Divalent ions of the first series transition elements and Hg were introduced into a cadmium hydroxyapatite Cd5 (P04) 30H by replacing a part of Cd2+, and the effects on the crystal growths and the structural changes were studied. Cd2+ can be exchanged with Mn2+ up to about 30 mol %, with N¡Z+or Hg2+ up to about 10 mol %, and with a little amount of Fe2+ or Cu2+. It was found that Cd5 (PO.)sOH f...

تهیه ترکیبات جدید {nap5 w30 o110} hx (tha)14-x hx و {nap5 w30 o110} hx (thpa)14-x و تعیین هیدروژن های اسید آن

هتروپلی آنیونها جزء دسته ای از ترکیبات معدنی با قابلیت تغییر الکترونی و توپولوژیکی بی نظیر بوده که طبقهء مشخص و متمایزی از کمپلکس ها را که اغلب اتمهای فلزی در آنها بصورت شبکه اکتاهدری کئوردینه شده اند تشکیل می دهند. یک دسته از هتروپلی آنیونها، تحت عنوان هتروپلی تنگستانها موارد استفاده زیادی را در صنعت بعنوان کاتالیزور و همچنین در شیمی پزشکی دارا هستند و مشتقات آلی آنها این کارایی را افزایش داده...

The cyclo-tetra­phosphate Cd2P4O12, a member of the isotypic series M 2P4O12 (M = Mg, Mn, Fe, Co, Ni, Cu)

The title compound, Cd(2)P(4)O(12), dicadmium cyclo-tetra-phosphate, crystallizes isotypically with the members of the series M(II) (2)P(4)O(12), where M = Mg, Mn, Fe, Co, Ni or Cu. Two CdO(6) octa-hedra, one with 2 and one with symmetry, share corners with the centrosymmetric P(4)O(12) (4-) ring anion that is built up from four corner-sharing PO(4) tetra-hedra. The isolated ring anions are arr...

رفتار Fe و Zn , Pb , Cd , Ni , Co , Mn و Cu در رسوبات بستر و ذرات معلق رودخانه تجن هنگام اختلاط با آب دریای خزر

+ x M O 2 ( M = Li , Ni , Mn , Fe

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