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Journal articles on the topic 'Dipyridio phenazine'

Author: Grafiati

Published: 8 July 2021

Last updated: 29 July 2025

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1

Thirunarayanan, G., I. Muthuvel, and V. Sathiyendiran. "Effect of Substituents on Phenazine Derivatives by Spectral Studies." International Letters of Chemistry, Physics and Astronomy 48 (March 2015): 114–22. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.48.114.

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A series of eleven substituted dipyrido[3,2-a; 2′,3′-c]phenazine derivatives have been synthesized and examined their purities by literature method. The infrared and 13C NMR spectral data of prepared phenazines were correlated with Hammett substituent constants, F and R parameters using single and multi-regression analysis. From the results of statistical analysis, the effect of substituents on the infrared frequencies (ν, cm-1) and 13C nmr chemical shifts(δ, ppm) has been studied.

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2

Thirunarayanan, G., I. Muthuvel, and V. Sathiyendiran. "Effect of Substituents on Phenazine Derivatives by Spectral Studies." International Letters of Chemistry, Physics and Astronomy 48 (March 25, 2015): 114–22. http://dx.doi.org/10.56431/p-5863a6.

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A series of eleven substituted dipyrido[3,2-a; 2′,3′-c]phenazine derivatives have been synthesized and examined their purities by literature method. The infrared and 13C NMR spectral data of prepared phenazines were correlated with Hammett substituent constants, F and R parameters using single and multi-regression analysis. From the results of statistical analysis, the effect of substituents on the infrared frequencies (ν, cm-1) and 13C nmr chemical shifts(δ, ppm) has been studied.

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3

Saha, Sounik, Ritankar Majumdar, Akhtar Hussain, Rajan R. Dighe, and Akhil R. Chakravarty. "Biotin-conjugated tumour-targeting photocytotoxic iron(III) complexes." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, no. 1995 (2013): 20120190. http://dx.doi.org/10.1098/rsta.2012.0190.

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Iron(III) complexes [FeL(B)] ( 1 – 4 ) of a tetradentate phenolate-based ligand (H 3 L) and biotin-conjugated dipyridophenazine bases (B), viz. 7-aminodipyrido [3,2- a :2′,3′- c ]-phenazine (dppza in 1 ), ( N -dipyrido[3,2- a :2′,3′- c ]-phenazino)amidobiotin (dppzNB in 2 ), dipyrido [3,2- a :2′,3′- c ]-phenazine-11-carboxylic acid (dppzc in 3 ) and 2-((2-biotinamido)ethyl) amido-dipyrido[3,2- a :2′,3′- c ]-phenazine (dppzCB in 4 ) are prepared, characterized and their interaction with streptavidin and DNA and their photocytotoxicity and cellular uptake in various cells studied. The high-spin

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4

Funston, Alison M., Carleen Cullinane, Kenneth P. Ghiggino, W. David McFadyen, Stanley S. Stylli, and Peter A. Tregloan. "Dipyridophenazine Complexes of Cobalt(III): DNA Photocleavage and Photobiology." Australian Journal of Chemistry 58, no. 3 (2005): 206. http://dx.doi.org/10.1071/ch04206.

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The UV-visible spectroscopy and photochemistry of [Co(en)2(DPPZ)](ClO4)3 (DPPZ = dipyrido[3,2-a:2´,3´-c]-phenazine) in the presence of plasmid DNA and the nucleoside 2´-deoxygaunosine have been investigated. Evidence for the intercalation of the complex with DNA and photoinduced DNA strand breakage is found. The structurally related complexes [Co(en)2(DPPN)]Cl3 and [Co(en)2(DPPA)]Cl2, where DPPN = benzo[i]dipyrido[3,2-a:2´,3´-c]phenazine and DPPA = dipyrido[3,2-a:2´,3´-c] phenazine-11-carboxylic acid, have also been synthesized and characterized. In vitro cytotoxicity studies and photocytotoxi

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5

Szczepanik, Wojciech, Marzena Kucharczyk-Klamińska, Piotr Stefanowicz, et al. "DNA Oxidative Cleavage Induced by the Novel Peptide Derivatives of 3-(quinoxalin-6-yl)alanine in Combination with Cu(II) or Fe(II) Ions." Bioinorganic Chemistry and Applications 2009 (2009): 1–10. http://dx.doi.org/10.1155/2009/906836.

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Three model dipeptides containing 3-(2,3-di(pyridin-2-yl)quinoxalin-6-yl)alanine, 3-(dipyrido[3,2-a:2,3-c]phenazin-11-yl)alanine, and 3-(2,3-diphenylquinoxalin-6-yl)alanine were studied with respect to their ability to bind selected transition metal ions, such as Cu(II), Fe(II), Ni(II), Co(II), Mn(II), and Cr(III). It was found that only Cu(II) and Fe(II) ions could form stable complex species with the studied compounds. The ability to form the complexes correlated well with DNA damage experiments. Only the ferrous and cupric complexes are capable of generating both single- and double-strand s

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6

Murali, M. G., Xingzhu Wang, Qing Wang, and Suresh Valiyaveettil. "Design and synthesis of new ruthenium complex for dye-sensitized solar cells." RSC Advances 6, no. 63 (2016): 57872–79. http://dx.doi.org/10.1039/c6ra10881d.

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7

Abosede, Olufunso O., Nilima A. Vyas, Sushma B. Singh, et al. "Copper(ii) mixed-ligand polypyridyl complexes with doxycycline – structures and biological evaluation." Dalton Transactions 45, no. 7 (2016): 3003–12. http://dx.doi.org/10.1039/c5dt04405g.

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Structures and biological evaluation of Cu(ii) mixed-ligand polypyridyl complexes with doxycycline of the type [Cu(doxycycline)(L)(H<sub>2</sub>O)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub>, L = 2,2′-bipyridine (bpy, 1), 1,10-phenanthroline (phen, 2), dipyrido[3,2-d:2′,3′-f]quinoxaline (dpq, 3) and dipyrido[3,2-a:2′,3′-c]phenazine (dppz, 4).

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8

Hayashi, Yuichiro, Ami Morimoto, Takeshi Maeda та ін. "Synthesis of novel π-extended D–A–D-type dipyrido[3,2-a:2′,3′-c]phenazine derivatives and their photosensitized singlet oxygen generation". New Journal of Chemistry 45, № 4 (2021): 2264–75. http://dx.doi.org/10.1039/d0nj05526c.

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9

Kothavale, Shantaram, Won Jae Chung, and Jun Yeob Lee. "Isomer engineering of dipyrido[3,2-a:3′,4′-c]phenazine-acceptor-based red thermally activated delayed fluorescent emitters." Journal of Materials Chemistry C 10, no. 15 (2022): 6043–49. http://dx.doi.org/10.1039/d2tc00017b.

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10

O’Connor, Darragh, Aisling Byrne, Ciarán Dolan, and Tia E. Keyes. "Phase partitioning, solvent-switchable BODIPY probes for high contrast cellular imaging and FCS." New Journal of Chemistry 42, no. 5 (2018): 3671–82. http://dx.doi.org/10.1039/c7nj04604a.

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Lipophilic BODIPY fluorphores, in which the BODIPY core bears pendant dipyrido[3,2-a:2′,3′-c]phenazine (Dppz) or naphthyridyl and cholesterol substituents were designed and prepared as lipid probes for both liposomes and live cell imaging.

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11

Alsaedi, Sammar, Bandar A. Babgi, Magda H. Abdellattif, et al. "DNA-Binding and Cytotoxicity of Copper(I) Complexes Containing Functionalized Dipyridylphenazine Ligands." Pharmaceutics 13, no. 5 (2021): 764. http://dx.doi.org/10.3390/pharmaceutics13050764.

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A set of copper(I) coordination compounds with general formula [CuBr(PPh3)(dppz-R)] (dppz-R = dipyrido[3,2-a:2’,3’-c]phenazine (Cu-1), 11-nitrodipyrido[3,2-a:2’,3’-c]phenazine (Cu-2), 11-cyanodipyrido[3,2-a:2’,3’-c]phenazine (Cu-3), dipyrido[3,2-a:2’,3’-c]phenazine-11-phenone (Cu-4), 11,12-dimethyldipyrido[3,2-a:2’,3’-c]phenazine (Cu-5)) have been prepared and characterized by elemental analysis, 1H-NMR and 31P-NMR spectroscopies as well as mass spectrometry. The structure of Cu-1 was confirmed by X-ray crystallography. The effect of incorporating different functional groups on the dppz ligand

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12

Chen, Gong-Jun, Yang Zhou, Guo-Xia Jin, and Yu-Bin Dong. "[Dy(acac)3(dppn)]·C2H5OH: construction of a single-ion magnet based on the square-antiprism dysprosium(iii) ion." Dalton Trans. 43, no. 44 (2014): 16659–65. http://dx.doi.org/10.1039/c4dt01956c.

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13

Nagaraj, Karuppiah, Krishnan Senthil Murugan, Pilavadi Thangamuniyandi, and Subramanian Sakthinathan. "Nucleic acid binding study of surfactant copper(ii) complex containing dipyrido[3,2-a:2′-3′-c]phenazine ligand as an intercalator: in vitro antitumor activity of complex in human liver carcinoma (HepG2) cancer cells." RSC Adv. 4, no. 99 (2014): 56084–94. http://dx.doi.org/10.1039/c4ra08049a.

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A new surfactant copper(ii) complex, [Cu(dppz)<sub>2</sub>DA](ClO<sub>4</sub>)<sub>2</sub>, where dppz = dipyrido[3,2-a:2′-3′-c]phenazine and DA-dodecylamine, has been synthesized and characterized by physico-chemical and spectroscopic methods.

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14

Savić, Aleksandar, Nevenka Gligorijević, Sandra Aranđelović, et al. "Antitumor activity of organoruthenium complexes with chelate aromatic ligands, derived from 1,10-phenantroline: Synthesis and biological activity." Journal of Inorganic Biochemistry 202, Jan, (2020): 110869. https://doi.org/10.1016/j.jinorgbio.2019.110869.

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The monocationic chloro complexes containing chelating N∩N ligands: [(η<sup>6</sup>-p-cymene)Ru(L1-4)Cl]<sup>+</sup> (1-4), where L1 = 4-methyl-1,10-phenantroline, L2 = dipyrido[3,2-a:2',3'-c]phenazine, L3 = 11-chloro-dipyrido[3,2-a:2',3'-c]phenazine, L4 = 11-nitro-dipyrido[3,2-a:2',3'-c]phenazine; p-cymene = 1-methyl-4-isopropylbenzene) have been prepared and characterized as the hexafluorophosphate salts. The biological activity of 1-4 has been investigated in selected 2D monolayer cell cultures (A549, PANC-1, MDA-MB-231, MRC-5). All investigated rutheniu

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15

Zhou, Feng-Chen, Wei Fang, En-Jie Dong та Chuan-Bi Li. "Dichlorobis(dipyrido[3,2-a:2′3′-c]phenazine-κ2 N,N)zinc(II)". Acta Crystallographica Section E Structure Reports Online 63, № 3 (2007): m660—m661. http://dx.doi.org/10.1107/s1600536807000050.

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In the title compound, [ZnCl2(C18H10N4)2], the ZnII atom, lying on a crystallographic twofold rotation axis, is six-coordinated in an octahedral geometry by two Cl− ions and four N atoms from two dipyrido[3,2-a:2′3′-c]phenazine ligands. Neighboring molecules interact through π–π contacts, forming a supramolecular structure.

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16

Che, Guang-Bo, Zhan-Lin Xu та Chun-Bo Liu. "μ-Benzene-1,4-dicarboxylato-bis[chloro(dipyrido[3,2-a:2′,3′-c]phenazine)copper(II)]". Acta Crystallographica Section E Structure Reports Online 62, № 7 (2006): m1695—m1696. http://dx.doi.org/10.1107/s1600536806024378.

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In the title compound, [Cu2Cl2(C8H4O4)(C18H10N4)2], the CuII atom is four-coordinated by two N atoms from one bidentate dipyrido[3,2-a:2′,3′-c]phenazine ligand, one Cl− anion and one O atom from the benzene-1,4-dicarboxylate ligand. The complete benzene-1,4-dicarboxylate ligand is generated by inversion symmetry, leading to a dinuclear complex. Neighbouring molecules interact through π–π stacking, resulting in a two-dimensional supramolecular structure.

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17

Savić, Aleksandar, Nevenka Gligorijević, Sandra Aranđelović, et al. "Antitumor activity of organoruthenium complexes with chelate aromatic ligands, derived from 1,10-phenantroline: synthesis and biological activity." J Inorg Bio 202, no. 2020 (2019): 110869. https://doi.org/10.1016/j.jinorgbio.2019.11086.

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The monocationic chloro complexes containing chelating N∩N ligands: [(η6-pcymene) Ru(L1-4)Cl]+ (1-4), where L1 = 4-methyl-1,10-phenantroline, L2 = dipyrido[3,2- a:2′,3′-c]phenazine, L3 = 11-chloro-dipyrido[3,2-a:2',3'-c]phenazine, L4 = 11-nitrodipyrido[3,2-a:2',3'-c]phenazine; p-cymene = 1-methyl-4-isopropylbenzene) have been prepared and characterized as the hexafluorophosphate salts. The biological activity of 1-4 has been investigated in selected 2D monolayer cell cultures (A549, PANC-1, MDA-MB-231, MRC-5). All investigated ruthenium complexes showed simi

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18

Ying, Jun, Ai-xiang Tian, and Bin Li. "A New Blue-emitting Diimine Copper(I) Complex: Synthesis, Crystal Structure and Photophysical Properties." Zeitschrift für Naturforschung B 64, no. 3 (2009): 287–91. http://dx.doi.org/10.1515/znb-2009-0306.

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A new diimine Cu(I) complex, [Cu(DPEphos)(DPOP)]BF4 ・CH2Cl2 (1) (DPEphos = bis[2- (diphenylphosphino)phenyl]-ether, DPOP = 2-(11-dipyrido[3,2-a:2ʹ,3ʹ-c]phenazine)-5-p-tolyl-1,3,4- oxadiazole), has been synthesized and characterized by X-ray single-crystal diffraction analysis. In crystals of complex 1, the [Cu(DPEphos)(DPOP)]+ cations are arranged in supramolecular chains, just like a “zipper”. Cation layers and anion layers are alternating in this structure. The photophysical behavior of DPOP and 1 was studied.

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19

Davis, Holly Jane, Daniel Häussinger, Thomas R. Ward, and Yasunori Okamoto. "A Visible‐Light Promoted Amine Oxidation Catalyzed by a Cp*Ir Complex." ChemCatChem 12, no. 18 (2020): 4512–16. https://doi.org/10.5281/zenodo.4668587.

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Through a rapid screening of Cp*Ir complexes based on a turn‐on type fluorescence readout, a [Cp*Ir(dipyrido[3,2‐a : 2’,3’‐c]phenazine)Cl]<sup>+</sup> complex was found to catalyze the blue‐light promoted dehydrogenation of <em>N</em>‐heterocycles under physiological conditions. In the dehydrogenation of tetrahydroisoquinolines, the catalyst preferentially yielded the monodehydrogenated product, accompanying H<sub>2</sub>O<sub>2</sub> generation. We surmise that this mechanism may be reminiscent of flavin‐dependent oxidases.

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20

Waterland, Mark R., and Keith C. Gordon. "Determination of the Lowest Excited State of Metal Complexes of Dipyrido[3, 2-a:2′,3′-c]Phenazine." Laser Chemistry 19, no. 1-4 (1999): 287–89. http://dx.doi.org/10.1155/1999/48354.

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The nature of the lowest excited state of rhenium and copper complexes of dipyrido[3,2- a:2′ ,3′-c]phenazine (Dppz) has been determined using Resonance Raman, Time- Resolved Resonance Raman Spectroscopy and Spectroelectrochemistry. Comparison of spectroelectrochemical data and excited state data show that for the complexes studied no reduced ligand bands are observed in the excited state spectra thus the lowest excited states are all Ligand Centred in nature. The use of substituents at the 11 and/or 12 position of the ligand has no effect on the excited state ordering.

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21

Xu, Mao-Liang, Shu-Bo Sun, Xiu-Ying Li, and Guang-Bo Che. "Dichlorido(dipyrido[3,2-a:2′,3′-c]phenazine)manganese(II)." Acta Crystallographica Section E Structure Reports Online 65, no. 2 (2009): m136. http://dx.doi.org/10.1107/s1600536808043468.

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22

Li, Chuan-Bi, Wei Fang, En-Jie Dong, Bo Liu та Yan-Wei Li. "catena-Poly[[[(dipyrido[3,2-a:2′,3′-c]phenazine)zinc(II)]-μ-benzene-1,4-dicarboxylato] dipyrido[3,2-a:2′,3′-c]phenazine 0.67-solvate]". Acta Crystallographica Section E Structure Reports Online 63, № 1 (2006): m150—m152. http://dx.doi.org/10.1107/s1600536806052536.

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23

Trofimova, O. Y., A. V. Maleeva, M. V. Arseniev, et al. "Copper(II) complexes with mono- and doubly reduced forms of 3,5-di-tert-octyl-o-benzoquinone." Журнал неорганической химии 69, no. 2 (2024): 203–12. http://dx.doi.org/10.31857/s0044457x24020073.

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Copper(II) complexes on the basis of 3,5-di-tert-octyl-o-benzoquinone (3,5-tOc-Q) have been synthesised. Derivatives of the composition: (3,5-tOc-SQ)2Cu (I), (3,5-tOc-Cat)Cu(Phen) (II), (3,5-tOc-Cat)Cu(DPQ) (III) and (3,5-tOc-Cat)Cu(DPPZ) (IV), where 3,5-tOc-SQ is the anion radical of 3,5-di-tert-octyl-o-benzoquinone, 3,5-tOc-Cat is the dianion of 3,5-di-tert-octyl-o-benzoquinone, Phen is phenanthroline, DPQ is dipyrido[3,2-d: 2′,3′-f]quinoxaline, DPPZ — dipyrido[3,2-a:2′,3′-c]phenazine. The molecular and crystal structures of complexes I and II were established by X-ray diffraction. The spect

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24

Wang, Qing-Wei, Xiao-Hong Zhao, Zhi-Xing Yu, and Jian Wang. "Bis(dipyrido[3,2-a:2′,3′-c]phenazine)sulfatoiron(II) monohydrate." Acta Crystallographica Section E Structure Reports Online 63, no. 7 (2007): m1861. http://dx.doi.org/10.1107/s1600536807027675.

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25

Shahabadi, Nahid, and Maryam Mahdavi. "DNA Interaction Studies of a Cobalt(II) Mixed-Ligand Complex Containing Two Intercalating Ligands: 4,7-Dimethyl-1, 10-Phenanthroline and Dipyrido[3,2-a:2′,3′-c]phenazine." ISRN Inorganic Chemistry 2013 (December 30, 2013): 1–7. http://dx.doi.org/10.1155/2013/604218.

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A new cobalt(II) complex [Co(dppz)2(4,7-dmp)]2+ (4,7-dmp = 4,7-dimethyl-1,10-phenanthrolline) and dppz = dipyrido[3,2-a:2′-3′-c]phenazine has been synthesized and characterized by elemental analysis (CHN), FT-IR, and UV-visible (UV-Vis) spectroscopic techniques. The DNA-binding property of the complex has been investigated employing absorption spectroscopy, fluorescence spectroscopy, circular dichroism, and viscosity measurements. The experimental results show that the complex can bind to DNA in an intercalation mode. In comparison with previous study, the DNA-binding affinity of [Co(dppz)2(4,

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26

Wang, Xiu-Yan, Shuai Ma, Ting Li, and Ng Seik Weng. "Hydrothermal Synthesis and Crystal Structure of a Novel Pb(II) Coordination Polymer." Zeitschrift für Naturforschung B 66, no. 1 (2011): 103–6. http://dx.doi.org/10.1515/znb-2011-0118.

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The novel coordination polymer, [Pb(1,4-chdc)(L)], 1, (1,4-H2chdc = cyclohexane-1,4-dicarboxylic acid and L = 11-fluoro-dipyrido[3,2-a:2' ,3'-c]phenazine), has been synthesized using a hydrothermal method and characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Crystal data: C26H19FN4O4Pb, triclinic, space group P1, a = 9.074(5), b = 9.499(5), c = 13.853(5) Å , α = 85.640(5), β = 76.127(5), γ = 74.730(5)°, V = 1118.2(9)°A3, Z = 2. The 1,4-chdc ligands link the Pb(II) atoms to form a 1D chain structure. The L ligands are attached on both sides of the chains

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27

James, Marisa, Madelyn R. Shevlin, Thomas B. Green, Megan M. Smart, Colin D. McMillen, and Jared A. Pienkos. "Crystal Structures of DNA Intercalating Agents Dipyrido[3,2-f:2′,3′-h]quinoxaline (dpq), (Benzo[i]dipyrido[3,2-a:2′,3′c]phenazine (dppn), and [Ir(ppy)2(dppn)][PF6] (Where Hppy = 2-Phenylpyridine)." Inorganics 11, no. 9 (2023): 353. http://dx.doi.org/10.3390/inorganics11090353.

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Pyrazino-phenanthroline ligands are commonly used with transition metals as DNA intercalation agents. Herein, we report the characterization of two commonly utilized pyrazino-phenanthroline ligands, dipyrido[3,2-f:2′,3′-h]quinoxaline (dpq) and (benzo[i]dipyrido[3,2-a:2′,3′c]phenazine (dppn), by single-crystal X-ray diffraction. Additionally, the characterization of [Ir(ppy)2(dppn)][PF6], where Hppy = 2-phenylpyridine, by single-crystal X-ray diffraction is described. Both the dpq and dppn ligands crystallize as chloroform solvates where the chloroform molecule occupies the equivalent binding p

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28

David, Gabrielle, Penny J. Walsh, and Keith C. Gordon. "Red electroluminescence from transparent PVK-dye films based on dipyrido[3,2-a:2′,3′-c]phenazine and Re(CO)3Cl-dipyrido[3,2-a:2′,3′-c]phenazine dyes." Chemical Physics Letters 383, no. 3-4 (2004): 292–96. http://dx.doi.org/10.1016/j.cplett.2003.11.042.

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29

Yamada, Masaki, Yoshihito Tanaka, Yasuyuki Yoshimoto, Shigeyasu Kuroda, and Ichiro Shimao. "Synthesis and Properties of Diamino-Substituted Dipyrido [3,2-a: 2′,3′-c]phenazine." Bulletin of the Chemical Society of Japan 65, no. 4 (1992): 1006–11. http://dx.doi.org/10.1246/bcsj.65.1006.

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30

Olasunkanmi, L. O., J. Ige, and G. O. Ogunlusi. "Theoretical Study of the Molecular Geometries, Electronic and Thermodynamic Properties of Chlorinated Dipyrido-(3,2-a:,-c)-Phenazine." Journal of Chemistry 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/640649.

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Theoretical study of the molecular geometries, electronic and thermodynamic properties of dipyrido-(3,2-a:,-c)-phenazine (dppz) was carried out in the gas phase under standard conditions using PM6 Hamiltonian in semiempirical model. Effects of chlorine substituents on these properties were also investigated. The results showed that all the electronic and thermodynamic properties investigated were affected by the number and relative position of chlorine substituents. Variations in some properties are not significant for some isomeric congeners, having the same number of chlorine substituents, w

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31

Zhang, Yaxing, Jinyan Zhang, Changsheng Shi, Ning Sun, and Qiang Wang. "Dipyrido[3,2-a:2′,3′-c]phenazine acceptor based thermally activated delayed fluorescence emitters." Dyes and Pigments 206 (October 2022): 110634. http://dx.doi.org/10.1016/j.dyepig.2022.110634.

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32

Zhang, Shou-Cai, та Jun Sun. "Poly[[(dipyrido[3,2-a:2′,3′-c]phenazine)zinc(II)]-μ3-benzene-1,2-dicarboxylato]". Acta Crystallographica Section E Structure Reports Online 62, № 11 (2006): m3107—m3109. http://dx.doi.org/10.1107/s1600536806044217.

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33

He, Lin, Xuan Zeng, Weimin Ning, Ao Ying, Yunbai Luo, and Shaolong Gong. "Efficient Red Thermally Activated Delayed Fluorescence Emitters Based on a Dibenzonitrile-Substituted Dipyrido[3,2-a:2′,3′-c]phenazine Acceptor." Molecules 26, no. 9 (2021): 2427. http://dx.doi.org/10.3390/molecules26092427.

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How to construct efficient red-emitting thermally activated delayed fluorescence (TADF) materials is a challenging task in the field of organic light-emitting diodes (OLEDs). Herein, an electron acceptor moiety, 3,6-DCNB-DPPZ, with high rigidity and strong acceptor strength was designed by introducing two cyanobenzene groups into the 3,6-positions of a dipyrido[3,2-a:2′,3′-c]phenazine unit. A red-emitting compound, 3,6_R, has been designed and synthesized by combining the rigid acceptor unit with two triphenylamine donors. Due to high molecular rigidity and strong intramolecular charge transfe

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34

Wang, Rui, Bo Wei, Le Wang, Da-Liang Kong, Guo-Zhang Hu, and Chao Du. "A new Pb(II)-based coordination polymer constructed by 5-((4-carboxyphenoxy)methyl)benzene-1,3-dioic acid and N-donor co-ligand: crystal structure and anti-glioma activity." Main Group Metal Chemistry 42, no. 1 (2019): 13–18. http://dx.doi.org/10.1515/mgmc-2018-0030.

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Abstract A new lead(II)-organic architecture [Pb(HL) (dipyrido[3,2-a:2′,3′-c]phenazine (dppz))](H2O)2 (1) was successfully prepared under hydrothermal conditions by using organic-acid linker 5-((4-carboxyphenoxy)methyl) benzene-1,3-dioic acid (H3L) and N-donor chelating ligand dppz. The as-prepared complex was characterized by single-crystal X-ray structural analysis, powder X-ray diffraction (PXRD), and elemental analyses, which reveals that complex 1 shows a one-dimensional (1D) chain-like structure that is further extended to the 3D supermolecular network through H-bond and π-π interactions

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35

Hall, James P., Hanna Beer, Katrin Buchner, David J. Cardin та Christine J. Cardin. "Preferred orientation in an angled intercalation site of a chloro-substituted Λ -[Ru(TAP) 2 (dppz)] 2+ complex bound to d(TCGGCGCCGA) 2". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, № 1995 (2013): 20120525. http://dx.doi.org/10.1098/rsta.2012.0525.

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The crystal structure of the ruthenium DNA ‘light-switch’ complex Λ -[Ru(TAP) 2 (11-Cl-dppz)] 2+ (TAP=tetraazaphenanthrene, dppz=dipyrido[3,2- a ′:2′,3′- c ]phenazine) bound to the oligonucleotide duplex d(TCGGCGCCGA) 2 is reported. The synthesis of the racemic ruthenium complex is described for the first time, and the racemate was used in this study. The crystal structure, at atomic resolution (1.0 Å), shows one ligand as a wedge in the minor groove, resulting in the 51 ° kinking of the double helix, as with the parent Λ -[Ru(TAP) 2 (dppz)] 2+ . Each complex binds to one duplex by intercalati

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36

Nigatu, Desalegn, and Ahmed Mohammed. "Computational Investigation on Dipyrido[3,2-a:2’,3’-c]-phenazine and Its Cobalt (II) Complex." International Research Journal of Pure and Applied Chemistry 14, no. 4 (2017): 1–8. http://dx.doi.org/10.9734/irjpac/2017/36481.

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37

Jin, Xiang-Jun, Wei Fang та Xiao-Ping Li. "catena-Poly[[(dipyrido[3,2-a:2′,3′-c]phenazine)cadmium(II)]-μ-biphenyl-2,2′-dicarboxylato]". Acta Crystallographica Section E Structure Reports Online 63, № 12 (2007): m2877. http://dx.doi.org/10.1107/s1600536807052786.

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38

Glebov, Evgeni M., Olga D. Bakulina, Anton A. Shushakov, et al. "Formation and decay of a triplet state of dipyrido[3,2-a:2′,3′-c]phenazine." Mendeleev Communications 30, no. 3 (2020): 322–24. http://dx.doi.org/10.1016/j.mencom.2020.05.021.

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39

Walsh, Penny J., Natasha J. Lundin, Keith C. Gordon, Ji-Young Kim, and Chang-Hee Lee. "Spectral characterization of electroluminescent devices containing functionalized dipyrido[3,2-a:2′,3′-c]phenazine complexes." Optical Materials 31, no. 10 (2009): 1525–31. http://dx.doi.org/10.1016/j.optmat.2009.02.012.

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40

Horvath, Raphael, and Keith C. Gordon. "Excited state vibrational spectroscopy of metal complexes of dipyrido[3,2-a:2′,3′-c]phenazine." Inorganica Chimica Acta 374, no. 1 (2011): 10–18. http://dx.doi.org/10.1016/j.ica.2011.03.006.

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41

Li, Chuan-Bi, En-Jie Dong, Wei Fang, Bo Liu та Yan-Wei Li. "Di-μ-sulfato-bis[diaqua(dipyrido[3,2-a:2′,3′-c]phenazine)iron(II)] monohydrate". Acta Crystallographica Section E Structure Reports Online 62, № 11 (2006): m3122—m3124. http://dx.doi.org/10.1107/s160053680604400x.

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42

Liu, Chun-Ling, Ren-Zhang Wang та Shou-Cai Zhang. "catena-Poly[[[aqua(dipyrido[3,2-a:2′,3′-c]phenazine)cobalt(II)]-μ-succinato] monohydrate]". Acta Crystallographica Section E Structure Reports Online 62, № 12 (2006): m3167—m3169. http://dx.doi.org/10.1107/s1600536806045260.

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43

Kitamura, Y., T. Ihara, Y. Shirasaka, T. Mitsuru, M. Tazaki, and A. Jyo. "Highly enhanced duplex stability of dipyrido [3,2-a:2',3'-c] phenazine-modified oligonucleotide conjugate." Nucleic Acids Symposium Series 3, no. 1 (2003): 95–96. http://dx.doi.org/10.1093/nass/3.1.95.

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44

McGovern, David A., Ania Selmi, John E. O'Brien, John M. Kelly, and Conor Long. "Reduction of dipyrido-[3,2-a:2′,3′-c]-phenazine (dppz) by photolysis in ethanol solution." Chem. Commun., no. 11 (2005): 1402–4. http://dx.doi.org/10.1039/b415471a.

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45

Wei, Fang, Wen-Ju Wang, Xiang-Jun Jin, Ze-Min Mei та Xiao-Ping Li. "catena-Poly[[(dipyrido[3,2-a:2′,3′-c]phenazine)cobalt(II)]-μ-biphenyl-2,2′-dicarboxylato]". Acta Crystallographica Section E Structure Reports Online 64, № 2 (2008): m379. http://dx.doi.org/10.1107/s1600536808001827.

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46

YAMADA, M., Y. TANAKA, Y. YOSHIMOTO, S. KURODA, and I. SHIMAO. "ChemInform Abstract: Synthesis and Properties of Diamino-Substituted Dipyrido(3,2-a:2′,3′-c) phenazine." ChemInform 23, no. 31 (2010): no. http://dx.doi.org/10.1002/chin.199231204.

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47

Coates, Colin G., John J. McGarvey, Steven E. J. Bell, et al. "Transient Resonance Raman Studies of Ru(II) Complexes in DNA and in Homogeneous Media." Laser Chemistry 19, no. 1-4 (1999): 237–43. http://dx.doi.org/10.1155/1999/74587.

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Transient resonance Raman (TR2) spectroscopy has been used to investigate the metalligand charge-transfer (MLCT) excited states of Ru(II) polypyridyl complexes inDNAand in homogeneous solution. In DNA, complexes of the type [Ru(L)2(L′)]2+ were studied, where L=2, 2’-bipyridyl (bpy), 1,4, 5, 8-tetraazaphenanthrene (tap), and L′ dipyrido [3,2:a-2′ ,3′:c]-phenazine (dppz) or 1,4,5,8,9,12-hexaazatriphenylene (HAT). For [Ru(bpy)2(HAT)]2+, the enhancement pattern of vibrational modes in the TR2 spectra attributable to reduced HAT⋅− in the triplet MLCT state suggest perturbations to the intraligand t

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48

Abosede, Olufunso O. "New one-pot synthetic route and spectroscopic characterization of dinuclear triple carboxylatobridged cuii complexes of the polypyridyl ligands." Science World Journal 20, no. 1 (2025): 22–25. https://doi.org/10.4314/swj.v20i1.4.

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This paper describe a new one-pot synthetic route for the preparation of dinuclear triple carboxylato-bridged copper(II) complexes incorporating polypyridyl ligands. The ligands utilized were 2,2'-bipyridine (bpy), 1,10-phenanthroline (phen), and dipyrido[3,2-a:2′,3′- c]phenazine (dppz). Reaction of these ligands with copper(II) nitrate and acetylated lincomycin under mild conditions serendipitously yielded the complexes: [Cu2(bpy)2(CH3COO)(OH)(H2O)](NO3)2, [Cu2(phen)2(CH3COO)(OH)(H2O)](NO3)2 and [Cu2(dppz)2(CH3COO) (OH)(H2O)](NO3)2. The complexes were characterized by FTIR spectroscopy and el

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49

Zhang, Wen-Zhi, та Qun Xu. "Poly[tris(μ-benzene-1,4-dicarboxylato)bis(dipyrido[3,2-a:2′,3′-c]phenazine)trimanganese(II)]". Acta Crystallographica Section E Structure Reports Online 64, № 8 (2008): m995. http://dx.doi.org/10.1107/s1600536808019752.

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Fang-Wei та Ze-Min Mei. "catena-Poly[[aqua(dipyrido[3,2-a:2′,3′-c]phenazine)cobalt(II)]-μ-benzene-1,4-dicarboxylato]". Acta Crystallographica Section E Structure Reports Online 63, № 12 (2007): m3098—m3099. http://dx.doi.org/10.1107/s1600536807056826.

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