Control of the photochemical reactivity of coordination compounds by formation of supramolecular structures: the case of the hexacyanocobaltate(III) anion associated with polyammonium macrocyclic receptors

1985 ◽  
Vol 107 (24) ◽  
pp. 6888-6892 ◽  
Author(s):  
M. F. Manfrin ◽  
L. Moggi ◽  
V. Castelvetro ◽  
Vincenzo Balzani ◽  
M. W. Hosseini ◽  
...  
Keyword(s):  
Coordination Compounds ◽  
Supramolecular Structures ◽  
Photochemical Reactivity ◽  
Macrocyclic Receptors

Supramolecular structures of metronidazole and its copper(II), cobalt(II) and zinc(II) coordination compounds

2002 ◽  
Vol 91 (1) ◽  
pp. 339-348 ◽  
Author(s):  
Nadeshda Galván-Tejada ◽  
Sylvain Bernès ◽  
Silvia E. Castillo-Blum ◽  
Heinrich Nöth ◽  
Ramon Vicente ◽  
...  
Keyword(s):  
Coordination Compounds ◽  
Supramolecular Structures

Lead(II) supramolecular structures formed through a cooperative influence of the hydrazinecarbothioamide derived and ancillary ligands

CrystEngComm ◽  
2021 ◽  
Author(s):  
Isabel Garcia-Santos ◽  
Alfonso Castineiras ◽  
Ghodrat Mahmoudi ◽  
Maria G. Babashkina ◽  
Ennio Zangrando ◽  
...  
Keyword(s):  
Coordination Compounds ◽  
Supramolecular Structures ◽  
Ancillary Ligands ◽  
Self Assembling

In this work we report on new heteroleptic coordination compounds [Pb2(LI)2](NO3)2∙2MeOH (1), [Pb2(LII)2](NO3)2 (2), [Pb2(LIII)2](NO3)2∙MeOH∙H2O (3) and [Pb2(LIII)2(H2O)](NCS)2 (4), which were obtained through self-assembling of 2-(amino(pyridin-2-yl)methylene)hydrazine-1-carbothioamide (HLI), 2-(amino(pyrazin-2-yl)methylene)hydrazine-1-carbothioamide (HLII) or...

New fluorescent compounds based on zinc thiocyanate: influence of structure on spectral properties

2017 ◽  
Vol 73 (12) ◽  
pp. 1144-1150 ◽  
Author(s):  
Marcin Swiatkowski ◽  
Rafal Kruszynski
Keyword(s):  
Ir Spectroscopy ◽  
Coordination Compounds ◽  
Spectral Properties ◽  
Supramolecular Structures ◽  
Vibration Frequencies ◽  
Violet Light ◽  
Thiosemicarbazone Ligand ◽  
Stretching Vibration ◽  
Zinc Coordination ◽  
Fluorescent Compounds

New coordination compounds based on zinc thiocyanate, namely (acetone thiosemicarbazone-κ2 N 1,S)bis(isothiocyanato-κN)zinc(II) monohydrate, [Zn(NCS)2(C4H9N3S)]·H2O, (I), and diaquatetrakis(urea-κO)zinc(II) tetrakis(isothiocyanato-κN)zinc(II), [Zn(CH4N2O)4(H2O)2][Zn(NCS)4], (II), were synthesized and studied by UV–Vis, fluorescence and IR spectroscopy. Coordination salt (II) forms a rare system composed of two different coordination units of the same metal and it is the first example of a compound with two completely different zinc coordination units, of which one contains a tetrakis(urea)zinc unit. Both (I) and (II) possess fluorescence properties and produce blue and green emissions, respectively, upon irradiation with violet light. The spectral properties were correlated with the observed molecular and supramolecular structures. The acetone thiosemicarbazone ligand of (I) exhibits (upon coordination) red shifts of bands corresponding to N=C and C=S stretching vibration frequencies, which is not typical for chelating molecules.

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