Mononuclear manganese carboxylate complexes: Synthesis and structural studies

Polyhedron ◽  
2006 ◽  
Vol 25 (18) ◽  
pp. 3628-3638 ◽  
Author(s):  
Udai P. Singh ◽  
Asish K. Sharma ◽  
Pooja Tyagi ◽  
Shailesh Upreti ◽  
Raj K. Singh
Keyword(s):  
Structural Studies ◽  
Carboxylate Complexes ◽  
Manganese Carboxylate

Oxidation of hydrocarbons catalyzed by manganese carboxylate complexes

1989 ◽  
Vol 30 (42) ◽  
pp. 5689-5692 ◽  
Author(s):  
Kingsley L. Taft ◽  
Robert J. Kulawiec ◽  
Joseph E. Sarneski ◽  
Robert H. Crabtree
Keyword(s):  
Carboxylate Complexes ◽  
Oxidation Of Hydrocarbons ◽  
Manganese Carboxylate

Bridging Nitrate Groups in [Mn4O3(NO3)(O2CMe)3(R2dbm)3] (R = H, Et) and [Mn4O2(NO3)(O2CEt)6(bpy)2](ClO4):  Acidolysis Routes to Tetranuclear Manganese Carboxylate Complexes

2002 ◽  
Vol 41 (4) ◽  
pp. 805-817 ◽  
Author(s):  
Guillem Aromí ◽  
Sumit Bhaduri ◽  
Pau Artús ◽  
Kirsten Folting ◽  
George Christou
Keyword(s):  
Carboxylate Complexes ◽  
Manganese Carboxylate

Tetranuclear Manganese Carboxylate Complexes with a Trigonal Pyramidal Metal Topology via Controlled Potential Electrolysis

2000 ◽  
Vol 39 (7) ◽  
pp. 1501-1513 ◽  
Author(s):  
Sheyi Wang ◽  
Michael S. Wemple ◽  
Jae Yoo ◽  
Kirsten Folting ◽  
John C. Huffman ◽  
...  
Keyword(s):  
Carboxylate Complexes ◽  
Controlled Potential Electrolysis ◽  
Controlled Potential ◽  
Manganese Carboxylate

ChemInform Abstract: Oxidation of Hydrocarbons Catalyzed by Manganese Carboxylate Complexes.

ChemInform ◽  
1990 ◽  
Vol 21 (21) ◽  
Author(s):  
K. L. TAFT ◽  
R. J. KULAWIEC ◽  
J. E. SARNESKI ◽  
R. H. CRABTREE
Keyword(s):  
Carboxylate Complexes ◽  
Oxidation Of Hydrocarbons ◽  
Manganese Carboxylate

Ribosome Structural Organization

1974 ◽  
Vol 32 ◽  
pp. 332-333
Author(s):  
James A. Lake
Keyword(s):  
Ribosomal Proteins ◽  
Structural Organization ◽  
Three Dimensional ◽  
Small Subunit ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
Specific Antibodies ◽  
X Ray ◽  
E Coli ◽  
Complete Sequences

The understanding of ribosome structure has advanced considerably in the last several years. Biochemists have characterized the constituent proteins and rRNA's of ribosomes. Complete sequences have been determined for some ribosomal proteins and specific antibodies have been prepared against all E. coli small subunit proteins. In addition, a number of naturally occuring systems of three dimensional ribosome crystals which are suitable for structural studies have been observed in eukaryotes. Although the crystals are, in general, too small for X-ray diffraction, their size is ideal for electron microscopy.

Structural Studies on Mitotic Spindle Fibres

1978 ◽  
Vol 36 (3) ◽  
pp. 615-626
Author(s):  
J.R. Mcintosh
Keyword(s):  
Chemical Composition ◽  
Mitotic Spindle ◽  
Structural Studies ◽  
Mitotic Apparatus ◽  
Chemical Studies ◽  
Medical Interest ◽  
Spindle Fibres

The mitotic apparatus is a structure of obvious biological and medical interest, but it has proved to be a difficult cellular machine to understand. The chemical composition of the spindle is only slightly elucidated, largely because of the difficulties in preparing useful isolates of the structure. Chemical studies of the mitotic spindle have been reviewed elsewhere (Mcintosh, 1977), and will not be discussed further here. One would think that structural studies on the mitotic apparatus (MA) in situ would be straightforward, but even with this approach there is some disagreement in the results obtained with various methods and by different investigators. In this paper I will review briefly the approaches which have been used in structural studies of the MA, pointing out the strengths and problems of each approach. I will summarize the principal findings of the different methods, and identify what seem to be fruitful avenues for further work.

Image registration with a computer driven S.T.E.M.

1978 ◽  
Vol 36 (1) ◽  
pp. 98-99
Author(s):  
A.M.H. Schepman ◽  
J.A.P. van der Voort ◽  
J.E. Mellema
Keyword(s):  
Spot Size ◽  
Scanning Transmission Electron Microscope ◽  
Small Computer ◽  
Structural Studies ◽  
Area Of Interest ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Specimen Area ◽  
On Line ◽  
Minimum Distances

A Scanning Transmission Electron Microscope (STEM) was coupled to a small computer. The system (see Fig. 1) has been built using a Philips EM400, equipped with a scanning attachment and a DEC PDP11/34 computer with 34K memory. The gun (Fig. 2) consists of a continuously renewed tip of radius 0.2 to 0.4 μm of a tungsten wire heated just below its melting point by a focussed laser beam (1). On-line operation procedures were developped aiming at the reduction of the amount of radiation of the specimen area of interest, while selecting the various imaging parameters and upon registration of the information content. Whereas the theoretical limiting spot size is 0.75 nm (2), routine resolution checks showed minimum distances in the order 1.2 to 1.5 nm between corresponding intensity maxima in successive scans. This value is sufficient for structural studies of regular biological material to test the performance of STEM over high resolution CTEM.

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