JoVE Visualize What is visualize?
Stop Reading. Start Watching.
Advanced Search
Stop Reading. Start Watching.
Regular Search
Find video protocols related to scientific articles indexed in Pubmed.
A two-dimensional homospin Cu(II) ferrimagnet featuring S-shaped hexanuclear secondary building blocks.
Dalton Trans
PUBLISHED: 03-28-2014
Show Abstract
Hide Abstract
The decomposition of 2-(1-hydroxy-2-methylpropan-2-yl-imino)-1,2-diphenylethanone in the presence of copper acetate promoted the formation of a two-dimensional homospin Cu(II) ferrimagnet featuring S-shaped hexanuclear secondary building blocks and a new pentanodal topology.
Related JoVE Video
Structure, adsorption and magnetic properties of chiral metal-organic frameworks bearing linear trinuclear secondary building blocks.
Dalton Trans
PUBLISHED: 01-21-2011
Show Abstract
Hide Abstract
The reactions of new chiral organic ligands trimesoyltri(L-alanine) (L-TMTAH(3)) or trimesoyltri(D-alanine) (D-TMTAH(3)) with transition metal salts in the presence of an ancillary ligand of 4,4-bipyridine gave two pairs of three dimensional frameworks [Co(3)(L-TMTA)(2)(4,4-bpy)(4)]·28H(2)O (1), [Co(3)(D-TMTA)(2)(4,4-bpy)(4)]·28H(2)O (2) [Ni(3)(L-TMTA)(2)(4,4-bpy)(4)]·2C(2)H(5)OH·14H(2)O (3) and [Ni(3)(D-TMTA)(2)(4,4-bpy)(4)]·2C(2)H(5)OH·14H(2)O (4). These compounds were characterized by elemental analysis, IR, and X-ray powder diffraction analysis and the structures of 1-3 were determined from X-ray single crystal diffraction analysis. Complexes 1-4 feature linear trinuclear secondary building blocks [M(3)(COO)(4)](2+) formed via the connection of three metal ions by four carboxylato groups from four TMTA(3-) ligands. Every adjacent two linear trinuclear secondary building blocks are linked by one and three 4,4-bipyridine molecules along the a and c axis, respectively, to form two-dimensional sheets, which are further connected by TMTA(3-) ligands to construct a porous three dimensional framework with one-dimensional channels. Compound 3 was taken as an example to investigate the adsorption properties of compounds 1-4. It revealed a saturated hydrogen uptake of 216.6 cm(3) g(-1) (2.0 wt%) at 11.1 atm measured at 77 K, a maximum CO(2) uptake of 119.4 cm(3) g(-1) (23.5 wt%) at 19.5 atm measured at 298 K and a saturated CH(4) uptake of 77.8 cm(3) g(-1) (5.6 wt%) at 27.1 atm measured at 298 K. The magnetic studies of complexes 1 and 3 indicate the presence of antiferromagnetic interactions between the metal ions in the two compounds.
Related JoVE Video
4,4-Bipyridinium 1,4-phenyl-ene-diacetate.
Acta Crystallogr Sect E Struct Rep Online
PUBLISHED: 08-30-2009
Show Abstract
Hide Abstract
The title compound, C(10)H(10)N(2) (2+)·C(10)H(8)O(4) (2-), has inversion centres located at the geometric centres of the 1,4-phenyl-enediacetate anion and 4,4-bipyridinium cation. The anions and cations are connected by N-H?O hydrogen bonds, forming one-dimensional supra-molecular chains, which inter-act with each other via ?-? inter-actions [centroid-centroid distance = 3.938?(2)?Å], building a two-dimensional supra-molecular sheet.
Related JoVE Video
N-(1H-1,2,4-Triazol-5-yl)pyridine-2-carboxamide.
Acta Crystallogr Sect E Struct Rep Online
PUBLISHED: 08-29-2009
Show Abstract
Hide Abstract
In the structure of the title compound, C(8)H(7)N(5)O, the pyridine ring and the imidazole ring are nearly coplanar, making a dihedral angle of 2.97?(15)°. An intra-molecular N-H?O hydrogen bond occurs. In the crystal mol-ecules are connected by inter-molecular hydrogen bonds and ?-? stacking inter-actions between neighboring imidazole rings [centroid-centroid distance = 3.5842?(5)?Å and off-set angle = 21.77°], leading to the formation of a two-dimensional supra-molecular sheet.
Related JoVE Video
Glycine-templated manganese sulfate with new topology and canted antiferromagnetism.
Inorg Chem
PUBLISHED: 08-25-2009
Show Abstract
Hide Abstract
A new glycine-templated manganese(II) sulfate, (C(2)NO(2)H(5))MnSO(4) (1), has been solvothermally synthesized and characterized crystallographically and magnetically. Crystal data for 1: monoclinic, space group P2(1)/m, a = 4.8884(10) A, b = 7.8676(14) A, c = 8.0252(15) A, beta = 106.524(2) degrees , V = 295.90(10) A(3), Z = 2. The glycine bridges Mn(II) ions in mu(2) mode and sulfate in eta(3),mu(4) mode. Along the b direction, the neighboring Mn(II) ions were bridged to each other by two sulfate ions and one glycine ligand to form a triple-stranded braid. The adjacent braids were connected via the sulfate ions to give a two-dimensional framework with a novel binodal 4,6-connected (3(2);4(2);5(2))(3(4);4(4);5(4);6(3)) topology. The compound exhibits a spin-canted antiferromagnetic behavior with a weak ferromagnetic transition below 9 K, and the estimated canting angle is 0.13 degrees.
Related JoVE Video
Bis[4-oxido-2-oxo-2,3-di-hydro-pyrimidin-1-ium-5-carboxyl-ato(1.5-)-?O,O]bis-(1,10-phenanthroline-?N,N)dysprosium(III) dihydrate.
Acta Crystallogr Sect E Struct Rep Online
PUBLISHED: 08-25-2009
Show Abstract
Hide Abstract
In the title compound, [Dy(C(5)H(2.5)N(2)O(4))(2)(C(12)H(8)N(2))(2)]·2H(2)O, the Dy(III) ion is located on a twofold rotation axis and is coordinated in a square-anti-prismatic geometry by two chelating 1,10-phenanthroline mol-ecules as well as two 4-oxido-2-oxo-2,3-di-hydro-pyrimidin-1-ium-5-carboxyl-ato(1.5-) anions. N-H?O and O-H?O hydrogen bonds help to stabilize the crystal structure. The H atom involved in an N-H?N hydrogen bond is disordered around a twofold rotation axis.
Related JoVE Video
Metal complexes with N-(2-pyridylmethyl)iminodiacetate: from discrete polynuclear compounds to 1D coordination polymers.
Dalton Trans
PUBLISHED: 05-15-2009
Show Abstract
Hide Abstract
The reactions of M(ClO(4))(2).6H(2)O (M = Mn(2+), Co(2+) and Ni(2+)) with N-(2-pyridylmethyl)-iminodiacetic acid (H(2)pmida) gave three discrete polynuclear complexes {Na[Mn(3)(pmida)(3)(H(2)O)(3)]}ClO(4) (), {Na[Co(3)(pmida)(3)(H(2)O)(3)](H(2)O)}ClO(4) () and [Co(H(2)O)(6)][Co(3)(pmida)(3)(H(2)O)(3)](2)(ClO(4))(2).4H(2)O () and two 1D polymers {[Co(pmida)(H(2)O)].H(2)O}(n) () and {[Ni(pmida)(H(2)O)].H(2)O}(n) (). All complexes were characterized by elemental analysis, infrared (IR) spectroscopy and single-crystal X-ray diffraction analysis. Complexes and show similar structures with an unprecedented trinuclear unit [M(3)(pmida)(3)(H(2)O)(3)] in which the three six-coordinated divalent metal ions are joined by three coplanar syn-anti bridging carboxylate groups of three ligands into a closed planar twelve-membered ring with one Na(+) ion located on the C(3) axis. Complex possesses two kinds of coordination units: mononuclear cation [Co(H(2)O)(6)](2+) and trinuclear unit [Co(3)(pmida)(3)(H(2)O)(3)]. The Co(2+) and Ni(2+) ions in complexes and , respectively, present distorted octahedral geometries and are bridged by anti-anti bridging carboxylate groups of the ligands to form 1D chains. Compounds display a structure variation from discrete polynuclear to 1D coordination polymer along Mn(ii), Co(ii) to Ni(ii), and a dependence of the formation of discrete compound or coordination polymer on the identity of the metal ion. The magnetic investigations of were also carried out. The negative Weiss constants and coupling constants obtained from two kinds of fitting models indicate the presence of dominant antiferromagnetic exchanges mediated by the syn-anti bridging carboxylate groups between the metal centers of three compounds.
Related JoVE Video
A three-dimensional homochiral metal-organic framework constructed from manganese(II) with S-carboxymethyl-N-(p-tosyl)-L-cysteine and 4,4-bipyridine.
Acta Crystallogr C
PUBLISHED: 01-10-2009
Show Abstract
Hide Abstract
In the chiral polymeric title compound, poly[aqua(4,4-bipyridine)[mu(3)-S-carboxylatomethyl-N-(p-tosyl)-L-cysteinato]manganese(II)], [Mn(C(12)H(13)NO(6)S(2))(C(10)H(8)N(2))(H(2)O)](n), the Mn(II) ion is coordinated in a distorted octahedral geometry by one water molecule, three carboxylate O atoms from three S-carboxyatomethyl-N-(p-tosyl)-L-cysteinate (Ts-cmc) ligands and two N atoms from two 4,4-bipyridine molecules. Each Ts-cmc ligand behaves as a chiral mu(3)-linker connecting three Mn(II) ions. The two-dimensional frameworks thus formed are further connected by 4,4-bipyridine ligands into a three-dimensional homochiral metal-organic framework. This is a rare case of a homochiral metal-organic framework with a flexible chiral ligand as linker, and this result demonstrates the important role of noncovalent interactions in stabilizing such assemblies.
Related JoVE Video
A six-bladed impeller-like Cu18 nanocluster with S6 symmetry constructed from simple inorganic linkers.
Chem. Commun. (Camb.)
Show Abstract
Hide Abstract
Eighteen Cu(II) ions are consolidated by simple inorganic linkers alone to construct an S(6)-symmetric six-bladed impeller-like Cu(18) nanocluster driven by the concomitant decomposition reaction of a Schiff base, which affords a typical high-nuclearity inorganic cluster and a representative synthetic strategy. The magnetic measurements reveal dominant antiferromagnetic interaction in this cluster.
Related JoVE Video

What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.