Cobalt‐ und Rhodiumphthalocyanine mit O‐, S‐ und Se‐Donorliganden

Sievertsen, S.; Ostendorp, G.; Homborg, H.

doi:10.1002/zaac.19946200213

Cited by 16 publications

(12 citation statements)

References 34 publications

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“…When two molecules form a cofacial dimer, both the x-and y-polarized dipoles are parallel (or antiparallel) as mentioned above (Fig. A similar blue shift of the Q-band has also been reported for Al III [47,139], Ge IV [34], Fe III [140], Mn III [49], and Cr III [141] derivatives. This has been exemplified by Gasyna et al [137] on the basis of the The optical absorption spectra of μ-oxo dimers of the Si IV complex of phthalocyanine derivatives in cyclohexane (Fig.…”

Section: Cofacial Dimers Of Phthalocyanine and Degeneracy Of Their Trsupporting

confidence: 73%

Optical Spectra of Phthalocyanines and Related Compounds

Isago

2015

NIMS Monographs

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Section: Cofacial Dimers Of Phthalocyanine and Degeneracy Of Their Trsupporting

confidence: 73%

Optical Spectra of Phthalocyanines and Related Compounds

Isago

2015

NIMS Monographs

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“…The three Pc rings have bowl‐shaped conformations, with dihedral angles between isoindolene quadrants of 12.64–28.73° and Dy III centres that sit 1.268, 1.273, and 1.360 Å out of their respective Pc planes. Although no such trinuclear PcM‐based clusters are known, a related porphyrin‐containing structure, [(TPP)Th(OH) 2 ] 3 , has been reported, as well as simpler dinuclear PcM‐based μ‐oxo derivatives of the form [(L)PcTM‐ O ‐TMPc(L)] (TM=Ti, Cr, Mn, and Fe) and Pc‐free clusters of lanthanide hydroxides . The CV of Li(PcDy) 3 (OH) 4 (H 2 O) in THF shows two irreversible reduction peaks at −0.6 and −0.95 V, assigned to ring reduction to Pc 3− and Pc 4− , respectively, lower than compared to PcDyCl (−0.2 V and −0.6 V), and a reversible ring‐oxidation peak at 0.6 V.…”

Section: Methodsmentioning

confidence: 99%

Structural Diversity of F‐Element Monophthalocyanine Complexes

Zhou

McKearney

Leznoff

2020

Chemistry A European J

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The preparation and structural characterization of as eries of lanthanide and uranium(IV)p hthalocyanine halide complexes were achieved by reaction of the corresponding metal halide with Li 2 Pc. Ap reliminarys urvey of their reactivity includes ring reduction of Li(THF) 4 [PcUCl 3 ] with KC 8 leading to the first structurally characterized Pc 4À actinide complex, hydrolysis of PcDyCl(DMSO) to PcDyOH(H 2 O) 3 and preparation of au nique trimeric triangular Li(PcDy) 3 (OH) 4 (H 2 O) cluster.Macrocyclic phthalocyanines, porphyrins, andt heir metal complexes are widelyu sed for applications, such as dyes, pigments, [1] catalysts, [2] and photosensitizes for photodynamic cancert herapy with singlet oxygen. [3] The vast majority of metallophthalocyanine (PcM) complexes utilize transition metals,w ith ap articularf ocus on the late first row elements due to their good fit with the Pc-holeand their very high stability. Pc-complexes of fe lements (Ln = lanthanide;A c = actinide), which were first reported in 1965, [4] are much less investigated, with the notable exceptiono fb is-phthalocyanine sandwich complexes of the form [Pc 2 Ln] À and their more elaborate multidecker analogues, such as Pc 3 Ln 2 , [4,5] whicha re favoured due to the large ionic radii andh igh coordination numbers of the f-block elements, anda re of particulari nterest for single-molecule-magnet applications (especially for Ln = Dy,T b, Er). [6,7] However, furtherc hemistry at the metal site is limited in these Pc 2 -based systemsd ue to the steric and electronic saturation of the Ln centre. The less developed mono-PcLnXo rP cAcX 2 systems have mostly focused on oxy-anions as the axial X-group, with afew examples of X = halide; [8,9] however,t here are very few structurally characterizeds ystems, and their reactivity chemistry is ripe for furtherd evelopment. Herein, we report the synthesis, structure, and preliminaryr eactivity survey of PcM halide materials for both 4f and 5f metals, illustrating a Scheme1.Synthesis of PcDyCl(DMSO), PcErCl(THF), and Li(THF) 4 [PcUCl 3 ]. "Solvent" in PcLn-product = DMSO or THF,depending on the recrystallization conditions(seetext).[a] Dr.

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“…Figure d–f shows that the amorphous film produced in the preparation environment of 2–4 Pa has less element bonding state peaks, which are located at 157, 194, and 335 cm –1 , as shown in Figure d. The peaks at 157 and 194 cm –1 can be attributed to phonon vibration of Co–Se in the short-wave region. − The peak at 335 cm –1 can be attributed to longitudinal optical modes of the sphalerite structure in ZnSe. When the pressure in the vacuum cavity is increased to 6 or 8 Pa, the peak at 157 cm –1 in the short-wave region disappears, while the peaks at 237 and 248 cm –1 appear representing Co–Ga bonding information (Figure e).…”

Section: Resultsmentioning

confidence: 91%

Invisibility Cloak Technology of Anti-Infrared Detection Materials Prepared Using CoGaZnSe Multilayer Nanofilms

Pan

Huang²,

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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The development of infrared stealth clothing technology and materials has been widely studied. However, the research of near-infrared stealth clothing still faces some challenges including complex preparation processes, narrow spectral ranges, and poor antidetection efficiency. To solve these questions, a CoGaZnSe multilayer film used for anti-near-infrared detection is designed and prepared by pulse laser deposition (PLD) at different pressures from 2 to 12 Pa. Microstructures of the film can transform from amorphous to crystal at different Ar atmospheres demonstrated by X-ray diffraction, Raman spectroscopy, and theoretical calculations. The films with different transmittances from 10 to 95% are combined with multilayer films for reducing the infrared reflection, which results in the lowest energy loss per unit thickness of 1.01 × 10 −11 dB/cm. The light propagation in the multilayer is calculated by finite-difference time domain, revealing the regular sinusoidal propagation and absorption in multilayers. The multilayer films are coated on the surface of common clothing materials and tested using an infrared detector in the range of 400−6000 nm. The results prove that the quantum efficiency of infrared detection can be effectively reduced by CoGaZnSe multilayer films, especially for wool (83% in the range of 400−1800 nm and 86% in the range of 2000−6000 nm). Finally, a physical model is established to discover the mechanism of the antireflection and infrared effect and a theory of anti-infrared radiation. This research provides a new idea and method supporting the stealth technology and materials, which improves the efficiency of antiinfrared detection and makes it feasible to be applied in military, detection, and stealth technology.

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Cobalt‐ und Rhodiumphthalocyanine mit O‐, S‐ und Se‐Donorliganden

Cited by 16 publications

References 34 publications

Optical Spectra of Phthalocyanines and Related Compounds

Optical Spectra of Phthalocyanines and Related Compounds

Structural Diversity of F‐Element Monophthalocyanine Complexes

Invisibility Cloak Technology of Anti-Infrared Detection Materials Prepared Using CoGaZnSe Multilayer Nanofilms

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