Phosphorus nanorods--two allotropic modifications of a long-known element.

نویسندگان

  • Arno Pfitzner
  • Michael F Bräu
  • Josef Zweck
  • Gunther Brunklaus
  • Hellmut Eckert
چکیده

Elemental phosphorus has been known for about 350 years. As a result of huge scientific interest, numerous textbooks are filled with information about this element, its different allotropes, and its compounds. [1] Like boron and carbon, the element features tremendous structural variability, resulting in great diversity of physical properties and chemical reactivity: White phosphorus, P4, forms three crystal struc-

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Calcium and phosphorus metabolism during methylprednisolone puls therapy

  intravenous glucocorucoid pulse therapy is a common treatment for immunologically origin diseases but it can not be considered a completely bening treatment.the effects of long term administration of glucocorticoids on calcium and phosphorus metabolism are week known ,but is less in known about the effect of pluse therapy.the purpose of this study was to investigate the effect of methylpredn...

متن کامل

Structural principles of polyhedral allotropes of phosphorus.

We derive the structural principles of polyhedral allotropes of phosphorus, introducing three distinct families of black phosphorus nanostructures. The predicted tetrahedral, octahedral, and icosahedral phosphorus cages can also be considered as phosphorus fullerenes. Phosphorus cages up to P(888) are systematically investigated by quantum chemical methods, and their thermodynamic stabilities a...

متن کامل

Crystalline structures of Sb4 molecules in antimony thin films.

Elemental antimony occurs in the solid bulk in a metallic as well as an amorphous modification.[1] Over a wide temperature range the gas phase of elemental antimony comprises almost exclusively of tetrameric molecules;[2] however, a solid-state modification of antimony consisting of Sb4 molecules, comparable to white phosphorus and yellow arsenic, is not known to date. This is explained by the ...

متن کامل

Breathing mode vibrations and elastic properties of single-crystal and penta-twinned gold nanorods.

The acoustic vibrations of individual single-crystal and penta-twinned gold nanorods with widths from ∼7 to ∼26 nm are studied using atomic-level simulations and finite element calculations. It is demonstrated that the continuum model in the limit of an infinite rod length could be used to describe the breathing periods of nanorods with an aspect ratio as small as ∼2.5, in combination with bulk...

متن کامل

Tapered Optical Fiber Coated with ZnO Nanorods for Detection of Ethanol Concentration in Water

This work presents ZnO nanorods coated multimode optical fiber sensing behavior in response to ethanol solution. The sensor operates based on modulation of light intensity which arises from manipulation of light interaction with the ambient environment in sensing region. For this purpose, two steps are experimentally applied here; etching and then coating fiber with ZnO nanorods to provide stro...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Angewandte Chemie

دوره 43 32  شماره 

صفحات  -

تاریخ انتشار 2004