Spin canting in an unprecedented three-dimensional pyrophosphate- and 2,2′-bipyrimidine-bridged cobalt(ii) framework

2008 ◽  
pp. 5152 ◽  
Author(s):  
Nadia Marino ◽  
Teresa F. Mastropietro ◽  
Donatella Armentano ◽  
Giovanni De Munno ◽  
Robert P. Doyle ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Spin Canting

scholarly journals Transverse profile and three-dimensional spin canting of a Majorana state in carbon nanotubes

2019 ◽  
Vol 100 (15) ◽  
Author(s):  
Lars Milz ◽  
Wataru Izumida ◽  
Milena Grifoni ◽  
Magdalena Marganska
Keyword(s):  
Carbon Nanotubes ◽  
Three Dimensional ◽  
Spin Canting ◽  
Transverse Profile

Structure, photoluminescence, and magnetic properties of a Mn(ii)-based metal–organic framework

2020 ◽  
Vol 44 (43) ◽  
pp. 18694-18702
Author(s):  
Hyojin Kim ◽  
Sunhwi Eom ◽  
Sora Park ◽  
Dong Won Kang ◽  
Mengmeng Wang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Anisotropy ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Nitroaromatic Compounds ◽  
Trigonal Bipyramid ◽  
Spin Canting ◽  
Metal Organic ◽  
Low Symmetry ◽  
Organic Framework

Fluorescence of a three-dimensional Mn-based framework compound is completely quenched by nitroaromatic compounds and Cu2+ ions. Spin canting is operative in this Mn(ii) system, resulting from the magnetic anisotropy of the Mn(ii) ion in a low-symmetry trigonal bipyramid.

scholarly journals Three new metal coordination polymers of bifunctional imidazolate/tetrazolate bridges: the only example of a three-dimensional framework based on rare [Co4(μ3-OH)2(μ2-Cl)2]4+ mixed oxo-chloro-clusters

RSC Advances ◽  
2019 ◽  
Vol 9 (23) ◽  
pp. 13082-13087
Author(s):  
Lili Yang ◽  
Jian Zhou ◽  
Hua-Hong Zou ◽  
Qiuling Tang
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Metal Coordination ◽  
Spin Canting ◽  
Metal Coordination Polymers

The interconnection of rare [Co4(μ3-OH)2(μ2-Cl)2]4+ mixed oxo-chloro-clusters and bifunctional bridges gives a new three-dimensional framework with unusual spin-canting behavior.

The orbit of Pluto over a long interval of time

1966 ◽  
Vol 25 ◽  
pp. 227-229 ◽  
Author(s):  
D. Brouwer
Keyword(s):  
Periodic Orbit ◽  
Numerical Integration ◽  
Restricted Problem ◽  
Three Dimensional ◽  
The Third ◽  
Circular Restricted Problem ◽  
Resonance Relation

The paper presents a summary of the results obtained by C. J. Cohen and E. C. Hubbard, who established by numerical integration that a resonance relation exists between the orbits of Neptune and Pluto. The problem may be explored further by approximating the motion of Pluto by that of a particle with negligible mass in the three-dimensional (circular) restricted problem. The mass of Pluto and the eccentricity of Neptune's orbit are ignored in this approximation. Significant features of the problem appear to be the presence of two critical arguments and the possibility that the orbit may be related to a periodic orbit of the third kind.

Conformation of Ribosomes from Escherichia Coli

1974 ◽  
Vol 32 ◽  
pp. 210-211
Author(s):  
M. Boublik ◽  
W. Hellmann ◽  
F. Jenkins
Keyword(s):  
Binding Sites ◽  
Ribosomal Proteins ◽  
Fluorescent Dyes ◽  
Protein Biosynthesis ◽  
Three Dimensional ◽  
Spatial Arrangement ◽  
Dimensional Structure ◽  
Complete Understanding ◽  
And Function

The present knowledge of the three-dimensional structure of ribosomes is far too limited to enable a complete understanding of the various roles which ribosomes play in protein biosynthesis. The spatial arrangement of proteins and ribonuclec acids in ribosomes can be analysed in many ways. Determination of binding sites for individual proteins on ribonuclec acid and locations of the mutual positions of proteins on the ribosome using labeling with fluorescent dyes, cross-linking reagents, neutron-diffraction or antibodies against ribosomal proteins seem to be most successful approaches. Structure and function of ribosomes can be correlated be depleting the complete ribosomes of some proteins to the functionally inactive core and by subsequent partial reconstitution in order to regain active ribosomal particles.

Ultrastructural Investigations of the Contractile Filaments of Amoebae

1974 ◽  
Vol 32 ◽  
pp. 188-189
Author(s):  
P.L. Moore
Keyword(s):  
Cytoplasmic Streaming ◽  
Three Dimensional ◽  
Freeze Fracture ◽  
Amoeboid Movement ◽  
Different Types ◽  
Chemical Conditions ◽  
Complete Interpretation

Previous freeze fracture results on the intact giant, amoeba Chaos carolinensis indicated the presence of a fibrillar arrangement of filaments within the cytoplasm. A complete interpretation of the three dimensional ultrastructure of these structures, and their possible role in amoeboid movement was not possible, since comparable results could not be obtained with conventional fixation of intact amoebae. Progress in interpreting the freeze fracture images of amoebae required a more thorough understanding of the different types of filaments present in amoebae, and of the ways in which they could be organized while remaining functional.The recent development of a calcium sensitive, demembranated, amoeboid model of Chaos carolinensis has made it possible to achieve a better understanding of such functional arrangements of amoeboid filaments. In these models the motility of demembranated cytoplasm can be controlled in vitro, and the chemical conditions necessary for contractility, and cytoplasmic streaming can be investigated. It is clear from these studies that “fibrils” exist in amoeboid models, and that they are capable of contracting along their length under conditions similar to those which cause contraction in vertebrate muscles.

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