Zinc(II) metal-organic frameworks with 1,4-diazabicyclo[2.2.2]octane N,N′-dioxide: control of the parameters of the cationic porous framework and optical properties

Demakov, Pavel A.; Самсоненко, Д. Г.; Dybtsev, Danil N.; Федин, В. П.

doi:10.1007/s11172-022-3380-y

Cited by 14 publications

(4 citation statements)

References 42 publications

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“…Metal cations with fully filled or empty valence electron shells (e.g., d 0 or d 10 ) could be suitable for this purpose. Such a proposal has been confirmed for several Zn(II)- [102][103][104] and La(III)-based MOFs [105] containing trans-1,4-cyclohexanedicarboxylate, bicyclo[2.2.2]octane-1,4-dicarboxylate, or 1,4-diazabicyclo[2.2.2]octane-N,N'-dioxide. The reported diffuse reflection (DR) spectra for such compounds have unambiguously proven their very high transparency in UV/vis, at least up to 310 nm.…”

Section: Optical Propertiesmentioning

confidence: 70%

Properties of Aliphatic Ligand-Based Metal–Organic Frameworks

Demakov

2023

Polymers

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Ligands with a purely aliphatic backbone are receiving rising attention in the chemistry of coordination polymers and metal–organic frameworks. Such unique features inherent to the aliphatic bridges as increased conformational freedom, non-polarizable core, and low light absorption provide rare and valuable properties for their derived MOFs. Applications of such compounds in stimuli–responsive materials, gas, and vapor adsorbents with high and unusual selectivity, light-emitting, and optical materials have extensively emerged in recent years. These properties, as well as other specific features of aliphatic-based metal–organic frameworks are summarized and analyzed in this short critical review. Advanced characterization techniques, which have been applied in the reported works to obtain important data on the crystal and molecular structures, dynamics, and functionalities, are also reviewed within a general discussion. In total, 132 references are included.

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Section: Optical Propertiesmentioning

confidence: 70%

Properties of Aliphatic Ligand-Based Metal–Organic Frameworks

Demakov

2023

Polymers

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“…Zinc( ii ) and cadmium( ii ) complexes establish one of the most important classes of emissive compounds. 71–121 Earlier, we synthesized a series of mononuclear zinc( ii ) and cadmium( ii ) complexes with hybrid ligands containing a 2,2′-bipyridine moiety and natural terpene (+)-limonene or (+)-3-carene moieties and demonstrated that they exhibit luminescence with the quantum yield increasing in the following order: free ligand < cadmium( ii ) complex < zinc( ii ) complex. 122 The complexes with the limonene derivative demonstrate excitation wavelength–dependent emission with nanosecond and microsecond lifetimes of the excited states.…”

Section: Introductionmentioning

confidence: 99%

Efficient emission of Zn(ii) and Cd(ii) complexes with nopinane-annelated 4,5-diazafluorene and 4,5-diazafluoren-9-one ligands: how slight structural modification alters fluorescence mechanism

et al. 2023

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“…Previous studies have revealed that odabco does not suffer from steric hindrance [43], being able to hexa-coordinate different transition metal ions [44][45][46][47] in spite of its bulky alicyclic core. Further, the odabco alicyclic bridge possesses a very high degree of flexibility due to its several inversion, rotation and torsion modes, resulting in very high structural diversity [45,48,49], possible breathing, and ferroelectricity [50][51][52] in the relevant structures. Expanding the family of alicyclic N,N -dioxide-based MOFs towards magnetic and catalytically active transition metal ions, such as Co(II) and Ni(II), could result in new types of functional and dynamic materials.…”

Section: Introductionmentioning

confidence: 99%

Flexible Co(II)-and Ni(II)-Based Cationic 2D Metal–Organic Frameworks Based on a Charge-Neutral (O,O)-Donor Bridge

et al. 2023

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Two new metal–organic frameworks based on highly flexible 1,4-diazabicyclo[2.2.2]octane N,N′-dioxide (odabco) ligands were successfully synthesized and characterized. Their crystallographic formulae are [M(DMF)2(odabco)2](ClO4)2·dioxane, where M2+ = Co2+ (1) and Ni2+ (2), and DMF is N,N-dimethylformamide. The title compounds possess cationic 2D coordination networks filled with perchlorate anions and dioxane solvent molecules in the interlayer space, with 20% solvent accessible volume. Carbon dioxide adsorption measurements for desolvated samples 1a and 2a gave 511 m2/g and 377 m2/g specific surface areas, respectively, revealing the first example of gas adsorption properties in the structure based on a flexible odabco bridge, despite the presence of large counteranions within the positively charged network. Magnetization measurements for 1, 1a, 2 and 2a reveal their paramagnetic nature to be in a reasonable agreement with crystal structures, and almost no solvent dependence of the magnetization characteristics. A decrease in the effective magnetic moment observed at low temperatures is attributed mostly to zero-field level-splitting in the octahedral Ni2+ and Co2+ ions.

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Zinc(II) metal-organic frameworks with 1,4-diazabicyclo[2.2.2]octane N,N′-dioxide: control of the parameters of the cationic porous framework and optical properties

Cited by 14 publications

References 42 publications

Properties of Aliphatic Ligand-Based Metal–Organic Frameworks

Properties of Aliphatic Ligand-Based Metal–Organic Frameworks

Efficient emission of Zn(ii) and Cd(ii) complexes with nopinane-annelated 4,5-diazafluorene and 4,5-diazafluoren-9-one ligands: how slight structural modification alters fluorescence mechanism

Flexible Co(II)-and Ni(II)-Based Cationic 2D Metal–Organic Frameworks Based on a Charge-Neutral (O,O)-Donor Bridge

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