Month: April 2022

Electric Literature of C11H23Br. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Alkyl Chain Tuning of Small Molecule Acceptors for Efficient Organic Solar Cells. Author is Jiang, Kui; Wei, Qingya; Lai, Joshua Yuk Lin; Peng, Zhengxing; Kim, Ha Kyung; Yuan, Jun; Ye, Long; Ade, Harald; Zou, Yingping; Yan, He.

The field of organic solar cells has seen rapid developments after the report of a high-efficiency (15.7%) small mol. acceptor (SMA) named Y6. In this paper, we design and synthesize a family of SMAs with an aromatic backbone identical to that of Y6 but with different alkyl chains to investigate the influence of alkyl chains on the properties and performance of the SMAs. First, we show that it is beneficial to use branched alkyl chains on the nitrogen atoms of the pyrrole motif of the Y6. In addition, the branching position of the alkyl chains also has a major influence on material and device properties. The SMA with 3rd-position branched alkyl chains (named N3) exhibits optimal solubility and electronic and morphol. properties, thus yielding the best performance. Further device optimization using a ternary strategy allows us to achieve a high efficiency of 16.74% (and a certified efficiency of 16.42%).

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Recommanded Product: 1-Bromoundecane. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Exceptional dual fluorescent, excited-state intramolecular proton-transfer (ESIPT) columnar liquid crystals characterized by J-stacking and large Stokes shifts. Author is Kanakala, Madhu Babu; Yelamaggad, Channabasaveshwar V..

Herein the synthesis, characterization, and ESIPT activity of a homologous series of novel phasmidic bis(N-salicylideneaniline) Col LCs. was reported. Optical microscopic, calorimetric and powder X-ray diffraction (XRD) studies evidence the occurrence of hexagonal columnar (Colh) phase having p6mm symmetry where the constituent slices result from the self-assembly of a pair of mesogens in a side-by-side manner facilitated by intense longitudinal π-π interactions. X-ray data confirm the absence of both directionally correlated tilting of the slices and transverse core-core interactions within the columns. Fluorescence probing clearly evidence the ESIPT occurring not only in DCM solution of the mesogens but also in their three-condensed states viz., solid, liquid crystal, and isotropic liquid phase; in general, two archetypal emission bands at ∼430 nm (weak) and ∼ 630 nm (strong) with large Stokes shifts (250-275 nm) of ESIPT phenomenon was observed The slow shift of emission maxima of the ESIPT fluorescence as a function of decreasing temperature without photoluminescence quenching coupled with the estimated tilt angle (θ) of the slices normal to the columnar axis (37 to 42°), from the XRD data, confirmed the formation of so-called Scheibe or J-aggregates. The redox activity, metal ion sensing ability, and solvatochromism of the mesogens was also investigated. The study suggests that these ESIPT Col LCs with band-gap of about 3 eV can be regarded as wide-bandgap semiconducting materials having the electronic characteristics falling between those of conventional semiconductors and insulators.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Product Details of 693-67-4. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Mn(II) and Zn(II) complexes of a benzimidazole ligand having undecyl chains: Crystal structures, photophysical and thermal properties. Author is Kirpik, Hilal; Kose, Muhammet.

A new tridentate benzimidazole ligand (L-C11) containing undecyl chains and its Mn(II) and Zn(II) complexes were synthesized and characterized by spectroscopic and anal. methods. Mol. structures of complexes [Mn(L-C11)Cl2] and [Zn(L-C11)Cl2] were evaluated by x-ray diffraction studies. The x-ray data showed metal ions in both complexes are five-coordinate with distorted square pyramidal geometry around the metal centers. The undecyl chains in the structure of the complexes are aligned in an interdigitated manner (head to tail) forming a non-polar domain. The aggregation properties of the ligand and its complexes were studied by UV-visible absorption and emission spectroscopies in DMF-water mixtures The emission spectral data revealed that the compounds showed aggregation induced quenching (AIQ) in DMF-water solutions Moreover, thermal properties of the compounds were studied by TG, DTG and DSC anal.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Screening Libraries of Amphiphilic Janus Dendrimers Based on Natural Phenolic Acids to Discover Monodisperse Unilamellar Dendrimersomes, published in 2019-02-11, which mentions a compound: 693-67-4, mainly applied to dendrimer dendrimersome, Synthetic Route of C11H23Br.

Natural, including plant, and synthetic phenolic acids are employed as building blocks for the synthesis of constitutional isomeric libraries of self-assembling dendrons and dendrimers that are the simplest examples of programmed synthetic macromols. Amphiphilic Janus dendrimers are synthesized from a diversity of building blocks including natural phenolic acids. They self-assemble in water or buffer into vesicular dendrimersomes employed as biol. membrane mimics, hybrid and synthetic cells. These dendrimersomes are predominantly uni- or multilamellar vesicles with size and polydispersity that is predicted by their primary structure. However, in numerous cases, unilamellar dendrimersomes completely free of multilamellar assemblies are desirable. Here, we report the synthesis and structural anal. of a library containing 13 amphiphilic Janus dendrimers containing linear and branched alkyl chains on their hydrophobic part. They were prepared by an optimized iterative modular synthesis starting from natural phenolic acids. Monodisperse dendrimersomes were prepared by injection and giant polydisperse by hydration. Both were structurally characterized to select the mol. design principles that provide unilamellar dendrimersomes in higher yields and shorter reaction times than under previously used reaction conditions. These dendrimersomes are expected to provide important tools for synthetic cell biol., encapsulation, and delivery.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Cruickshank, Ewan; Strachan, Grant J.; Storey, John MD; Imrie, Corrie T. published an article about the compound: 1-Bromoundecane( cas:693-67-4,SMILESS:CCCCCCCCCCCBr ).Safety of 1-Bromoundecane. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:693-67-4) through the article.

The synthesis and characterization of the first eleven members of the 4′-(alkylthio)[1,1′-biphenyl]-4-carbonitriles, I [n = 1, 2, 3, etc.] was reported. All eleven members I showed monotropic liquid crystal behavior. The first six members were exclusively nematogenic, the seventh member showed nematic and smectic A phases and the higher homologues only smectic A behavior. A comparison of their transitional behavior with that of the corresponding alkyl and alkyloxy-cyanobiphenyls revealed a new pattern of behavior. Specifically, the nematic-isotropic transition temperatures showed a large decrease on passing from the methylthio to ethylthio homologues. This unexpected behavior was interpreted in terms of chalcogen bonding.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Norbury, A. H.; Sinha, A. I. P. published the article 《Infrared spectra (600-250cm-1) of some chloro and isocyanato complexes of palladium(II) and platinum(II)》. Keywords: palladium chloro isocyanato IR; platinum chloro isocyanato IR; isocyanato palladium platinum IR; chloro palladium platinum IR; IR palladium platinum complex.They researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Recommanded Product: cis-Dichlorobis(pyridine)platinum(II). Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:15227-42-6) here.

M-NCO stretching frequencies are assigned for mixed-ligand complexes of the type ML2(NCO)2 [M = Pd(II)]. The spectra of the corresponding chloro-complexes are reported, and many of the M-Cl and M-L stretching frequencies and internal vibrations are also assigned. The geometric configurations are confirmed in most cases. The M-NCO stretching frequencies are compared with the correspondence C:N frequencies and discussed in terms of backbonding, which is particularly important for the series PdL2(NCO)2.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Electric Literature of C11H23Br. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Cold Crystallization and Polymorphism Triggered by the Mobility of the Phenyl Group in Alkyl Azo Dye Molecules.

The thermal behavior, including the cold crystallization, of alkyl-derivatized Sudan III (1-[4-(phenylazo)phenylazo]-2-naphthol), SD3-OCn, was investigated. Its structural flexibility due to the two azo groups caused the formation of plural crystal structures, which further resulted in complex cold crystallization A metastable nonflat structure and a thermodynamically stable flat structure resulted in the two sets of crystallization and melting behavior during the heating process. Further, the change in the alkyl chain length caused variations in the crystallization rate and crystallinity, thus systematically changing the cold crystallization behavior. It was proven that the high mobility of the Ph group triggered supercooling and cold crystallization and that the alkyl chain correspondingly controlled the thermal behavior.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3-(2,5-Dichloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole(SMILESS: ClC1=NC(C2=CN(C3=C2C=CC=C3)S(=O)(=O)C2=CC=CC=C2)=C(Cl)C=N1,cas:882562-40-5) is researched.HPLC of Formula: 693-67-4. The article 《Structure-activity relationship study of THZ531 derivatives enables the discovery of BSJ-01-175 as a dual CDK12/13 covalent inhibitor with efficacy in Ewing sarcoma》 in relation to this compound, is published in European Journal of Medicinal Chemistry. Let’s take a look at the latest research on this compound (cas:882562-40-5).

Development of inhibitors targeting CDK12/13 is of increasing interest as a potential therapy for cancers as these compounds inhibit transcription of DNA damage response (DDR) genes. We previously described THZ531, a covalent inhibitor with selectivity for CDK12/13. In order to elucidate structure-activity relationship (SAR), we have undertaken a medicinal chem. campaign and established a focused library of THZ531 analogs. Among these analogs, BSJ-01-175 demonstrates exquisite selectivity, potent inhibition of RNA polymerase II phosphorylation, and downregulation of CDK12-targeted genes in cancer cells. A 3.0 Å co-crystal structure with CDK12/CycK provides a structural rational for selective targeting of Cys1039 located in a C-terminal extension from the kinase domain. With moderate pharmacokinetic properties, BSJ-01-175 exhibits efficacy against an Ewing sarcoma tumor growth in a patient-derived xenograft (PDX) mouse model following 10 mg/kg once a day, i.p. administration. Taken together, BSJ-01-175 represents the first selective CDK12/13 covalent inhibitor with in vivo efficacy reported to date.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Reactivity Ratios of MMA and N,N-Dimethyl-N-{2-[(2-methylprop-2-enoyl)oxy]ethyl}undecane-1-aminium Bromide in Thermal and UV Initiation Copolymerization, published in 2020-05-13, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, HPLC of Formula: 693-67-4.

Reactivity ratios for the copolymerization of Me methacrylate (MMA) and a quaternary ammonium compound (QAC) N,N-dimethyl-N-{2-[(2-methylprop-2-enoyl)oxy]ethyl}undecane-1-aminium bromide (dMEMUABr) were measured for the first time by using a thermal initiator azobisisobutyronitrile (AIBN) in deuterated DMSO (DMSO-d6) and deuterated chloroform (CDCl3) and a photo initiator 2-hydroxy-2-methylpropiophenone (HMP) under UV irradiation in CDCl3, resp. The consumption profiles for monomer in the thermal initiation copolymerization were monitored by in-situ 1H NMR while the data were analyzed by the Meyo-Lewis, Kelen-Tudos, and Meyer-Lowry methods, showing that the reactivity ratio of dMEMUABr is lower than that of MMA in DMSO-d6 but much higher in CDCl3. The significantly different reactivity ratios of dMEMUABr in DMSO-d6 from that in CDCl3 are attributed to micelle formation. These findings enable addnl. flexibility in the design and development of antimicrobial poly(MMA-co-dMEMUABr) coatings with desired copolymer chain sequence.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Gale, Glen R.; Morris, Carl R.; Atkins, Loretta M.; Smith, Alayne B. published the article 《Binding of antitumor platinum compound to cells as influenced by physical factors and pharmacologically active agents》. Keywords: tumor cell platinum compound binding.They researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Recommanded Product: 15227-42-6. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:15227-42-6) here.

Tritiated cis-dichloro(dipyridine)platinum(II) (I) [15227-42-6] bound to intact Ehrlich ascites tumor cells at 37.deg. in vitro and remained associated with the acid-insoluble fraction of the cells. The extent of binding was also increased with increasing hydrogen ion [1333-74-0] concentration in the medium. The binding was enhanced markedly at 60.deg. and the maximum number of binding sites/cell was .sim.7 billion at this temperature Of 49 chems. and drugs tested, none decreased appreciably the rate and extent of binding, whereas certain heavy metals, and compounds that compromise membrane permeability enhanced the binding. Human and bovine lymphocytes had similar binding characteristics, but bound much more I/unit of cell volume.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem