Cerium 3,5-Dinitrobenzoate Dihydrate

Tahir, Muhammad Nawaz; Ülkü, D.; Ünaleroğlu, Canan; Mövsümov, E. M.

doi:10.1107/s010827019600011x

Cited by 11 publications

(4 citation statements)

References 2 publications

(2 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2) The two different Gd-Gd distances of 4.2547(15) and 5.0620(16)Å are a consequence of alternate bridging by four and two ligands, respectively. This structure is extremely similar to the polymeric chains observed in cerium 3,5-dinitrobenzoato dihydrate 6 and catena-{(tetraaqua)hexakis(3,5-dinitrobenzenato)-disamarium} monohydrate.…”

supporting

confidence: 56%

“…

Rare earth carboxylates may have chelating, bridging and chelating-bridging modes of coordination simultaneously or separatively.1-5 The title compound, catena- 6 ]·2H 2 O, was synthesized in order to study the structure and to determine the mode of coordination around Gd.In a mole ratio of 1:1, 3,5-dinitrobenzoic acid and NaHCO 3 were added into hot distilled water and stirred by a magnetic stirrer until complete dissolution. A solution containing Gd 3+ was prepared by dissolving an appropriate quantity (1:3 mol of 3,5-dinitrobenzoic acid) of the Gd(NO 3 ) 3 ·6H 2 O (prepared from metallic Gd) in 10 ml of water.

…”

mentioning

confidence: 99%

“…[1][2][3][4][5] 6 ]·2H 2 O, was synthesized in order to study the structure and to determine the mode of coordination around Gd.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Crystal Structure of Gadolinium 3,5-Dinitrobenzoate Dihydrate

et al. 1999

View full text Add to dashboard Cite

show abstract

supporting

confidence: 56%

“…

…”

mentioning

confidence: 99%

See 1 more Smart Citation

Crystal Structure of Gadolinium 3,5-Dinitrobenzoate Dihydrate

et al. 1999

View full text Add to dashboard Cite

show abstract

“…Known examples are silver(I) benzoate and silver(I) 4-hydroxybenzoate . Silver is also known to form polymeric structures via cross-linking between Ag−OH groups, for example, poly[bis( p -nitrosalicylato-O:O‘)-disilver(I)-O 3 :Ag‘:Ag:O 3 ] . This propensity to form dimeric and polymeric structures with acids suggests that the AgNO 3 pretreatment of the SAM is likely to result in chelation of silver atoms between the carboxyl head groups of the monolayer.…”

Section: Resultsmentioning

confidence: 99%

STM Imaging of Cyanine Dye J-Aggregates Formed on Carboxyl-Terminated Self-Assembled Monolayers

and

Smith

1999

Langmuir

View full text Add to dashboard Cite

We report on the preparation and STM imaging of J-aggregates of 1,1′-diethyl-2,2′-cyanine (PIC) dye formed on a self-assembled monolayer of 11-mercaptoundecanoic acid (HS-(CH2)10-COOH). The formation of J-aggregates on the COOH surface was verified by reflection absorption measurements; however, the molecular assemblies were not bound strongly enough to the SAM to withstand the lateral forces applied during STM imaging. We found that pretreating the COOH surface with a solution of 1 mM AgNO3 before application of the PIC dye solution greatly improved the stability of the J-aggregates. We suggest that the reason for this is the formation of a silver chelate with the carboxyl head groups of the SAM which permits the subsequent adsorption of bromide counterions from the dye solution. The formation of a counterion monolayer has been shown to be important in the formation of stable J-aggregates. STM images of these samples revealed long, essentially linear aggregates (with a packing structure similar to the proposed "staircase structure") extending over hundreds of nanometers with an interaggregate spacing of 30 Å. We compare these structures with those formed by the same dye applied directly on silver (111). In addition to the reported brickwork packing structure of the dye monolayer which is in direct contact with the metal substrate, 1 we also observed a previously unreported bilayer structure. The second layer of dye molecules comprises linear aggregates with a similar packing arrangement to those formed on the pretreated COOH SAM.

show abstract

Synthesis, Crystal Structure, and Photophysical and Magnetic Properties of Dimeric and Polymeric Lanthanide Complexes with Benzoic Acid and Its Derivatives

et al. 2002

View full text Add to dashboard Cite

A new family of lanthanide carboxylate complexes with benzoic acid and its derivatives was synthesised and characterised. The structures of the complexes were established by X-ray crystallography, which revealed that various chelating modes of the carboxylate ligands are present on the metal ion, resulting in the formation of dimeric and polymeric skeletons. The photophysical properties of the Eu and Tb complexes were studied: the complexes exhibited sensitised luminescence in the visible spectral region, but the lumines-

show abstract

Cerium 3,5-Dinitrobenzoate Dihydrate

Cited by 11 publications

References 2 publications

Crystal Structure of Gadolinium 3,5-Dinitrobenzoate Dihydrate

Crystal Structure of Gadolinium 3,5-Dinitrobenzoate Dihydrate

STM Imaging of Cyanine Dye J-Aggregates Formed on Carboxyl-Terminated Self-Assembled Monolayers

Synthesis, Crystal Structure, and Photophysical and Magnetic Properties of Dimeric and Polymeric Lanthanide Complexes with Benzoic Acid and Its Derivatives

Contact Info

Product

Resources

About