Alternating polystannanes: syntheses and properties.

نویسندگان

  • Shane Harrypersad
  • Daniel Foucher
چکیده

A new condensation polymerization route leading to alternating polystannanes is presented. The stoichiometric reaction of tin dihydrides and tin diamides in diethyl ether or toluene under mild reaction conditions afforded three new moderate molecular weight alternating polystannanes, -[Ph2Sn-alt-Sn(n-Bu)2]n-, -[Ph2Sn-alt-SnMe2]n-, -[Me2Sn-alt-Sn(n-Bu)2]n-, in addition to a known homopolymer, -[(n-Bu)2]n-.

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

Gold (I) Complexes of 2,2'-Biimidazolate Ligand: Syntheses and Spectral Properties of Hetero-polymetallic Complexes Having Ru2Au2 Core

The reaction of [Ru(L)2(H2biim)](ClO4)2 [L1 = 2,2¢-bipyridine (bpy) or L2 =  2-(phenylazo)pyridine (pap) and H2biim = 2,2¢-biimidazole] with Au(tht)Cl (tht = tetrahydrothiophene) in presence of base in methanol produced a terametallic cationic complex [{Ru(L)2(biim)}<s...

متن کامل

A Projected Alternating Least square Approach for Computation of Nonnegative Matrix Factorization

Nonnegative matrix factorization (NMF) is a common method in data mining that have been used in different applications as a dimension reduction, classification or clustering method. Methods in alternating least square (ALS) approach usually used to solve this non-convex minimization problem.  At each step of ALS algorithms two convex least square problems should be solved, which causes high com...

متن کامل

New high-nuclearity manganese clusters containing mixed chelating ligands: syntheses, crystal structures and magnetochemical characterization.

Two polynuclear mixed-valence manganese clusters, [Mn(13)] and [Mn(16)], containing mixed chelating ligands were synthesized and structurally characterized. The alternating current (AC) susceptibilities of both complexes reveal nonzero frequency-dependent out-of-phase (χ(M)'') signals.

متن کامل

THE SYNTHESES OF 1- [[2- AMINO -1 - (HYDROXYMETHYL) ETHOXY] METHYL] URACIL AND 1, 3-BIS (2- HALOETHOXYMETHYL) PYRIMIDINE

The syntheses of the title compounds are described. 1- [[2- Amino -1 - (hydroxymethyl) ethoxy] methyl] uracil exhibitslittleactivity against herpesviruses (HSV) in vivo

متن کامل

Alternating Regular Tree Grammars in the Framework of Lattice-Valued Logic

In this paper, two different ways of introducing alternation for lattice-valued (referred to as {L}valued)  regular tree grammars and {L}valued top-down tree automata are compared. One is the way which defines the alternating regular tree grammar, i.e., alternation is governed by the non-terminals of the grammar and the other is the way which combines state with alternation. The first way is ta...

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:
  • Chemical communications

دوره 51 33  شماره 

صفحات  -

تاریخ انتشار 2015