Dalton Transactions

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Ultrafast photophysical processes for Fe(III)-carboxylates

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17590-17595
DOI: 10.1039/C4DT01419G, PerspectiveIvan P. Pozdnyakov, Alexey A. Melnikov, Nikolai Tkachenko, Sergey V. Chekalin, Helge Lemmetyinen, Victor F. Plyusnin
Recent works devoted to the investigation of ultrafast processes for several environmentally important Fe(III) carboxylates were observed and discussed.
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Synthesis and photoinduced electron transfer in platinum(II) bis(N-(4-ethynylphenyl)carbazole)bipyridine fullerene complexes

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17624-17634
DOI: 10.1039/C4DT01397B, PaperSai-Ho Lee, Chris Tsz-Leung Chan, Keith Man-Chung Wong, Wai Han Lam, Wai-Ming Kwok, Vivian Wing-Wah Yam
Photoinduced electron transfer reactions in platinum(II) donor-chromophore-acceptor triads were investigated in detail by transient absorption spectroscopy.
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Photophysics and non-linear absorption of Au(I) and Pt(II) acetylide complexes of a thienyl-carbazole chromophore

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17721-17728
DOI: 10.1039/C4DT02123A, PaperSubhadip Goswami, Geoffrey Wicks, Aleksander Rebane, Kirk S. Schanze
Carbazole oligomers with Pt(II)- and Au(I)-acetylide end units exhibit non-linear absorption due to instantaneous two-photon absorption combined with triplet-triplet absorption.
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A little spin on the side: solvent and temperature dependent paramagnetism in [RuII(bpy)2(phendione)]2+

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17729-17739
DOI: 10.1039/C4DT01868K, PaperRobert D. Schmidt, Caleb A. Kent, Javier J. Concepcion, Wenbin Lin, Thomas J. Meyer, Malcolm D. E. Forbes
Magnetometry, 1H-NMR, EPR and substituent effects are used to explain solvent and temperature dependent paramagnetism in [RuII(bpy)2(phendione)](PF6)2.
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Accurate yet feasible computations of resonance Raman spectra for metal complexes in solution: [Ru(bpy)3]2+ as a case study

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17610-17614
DOI: 10.1039/C4DT02151G, CommunicationAlberto Baiardi, Camille Latouche, Julien Bloino, Vincenzo Barone
Herein we present a new and promising approach for the high-resolution modeling of vibrational resonance Raman spectra of metal complexes in solution.
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Modified bibenzimidazole ligands as spectator ligands in photoactive molecular functional Ru-polypyridine units? Implications from spectroscopy

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17659-17665
DOI: 10.1039/C4DT01399A, PaperJulia Meyer-Ilse, Stefan Bauroth, Maximilian Brautigam, Michael Schmitt, Jurgen Popp, Rainer Beckert, Nils Rockstroh, T. David Pilz, Katharina Monczak, Frank W. Heinemann, Sven Rau, Benjamin Dietzek
The contribution of different protected bibenzimidazole ligands to the excited state in Ru-complexes has been evidenced using theory-aided resonance-Raman spectroscopy.
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Isomerization initiated by photoinduced ligand dissociation in Ru(II) complexes with the ligand 2-p-tolylpyridinecarboxaldimine

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17828-17837
DOI: 10.1039/C4DT02016B, PaperBryan A. Albani, Christopher B. Durr, Bruno Pena, Kim R. Dunbar, Claudia Turro
The photoinduced ligand exchange and isomerization of ruthenium(II) complexes proceed via a common intermediate for all isomers.
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Study of picosecond processes of an intercalated dipyridophenazine Cr(III) complex bound to defined sequence DNAs using transient absorption and time-resolved infrared methods

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17606-17609
DOI: 10.1039/C4DT01989J, CommunicationStephen J. Devereux, Paraic M. Keane, Suni Vasudevan, Igor V. Sazanovich, Michael Towrie, Qian Cao, Xue-Zhong Sun, Michael W. George, Christine J. Cardin, Noel A. P. Kane-Maguire, John M. Kelly, Susan J. Quinn
Excited-state quenching of DNA intercalated [Cr(phen)2(dppz)]3+ by guanine proceeds by rapid forward and back electron transfer of <3 ps.
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Picosecond time-resolved infrared spectroscopy of rhodium and iridium azides

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17694-17702
DOI: 10.1039/C4DT02097A, PaperPeter Portius, Anthony J. H. M. Meijer, Michael Towrie, Benjamin F. Crozier, Ingrid Schiager
Ultrafast photochemical processes induced in the transition metal azido complexes Rh(Cp*)(N3)2(PPh3) and Ir(Cp*)(N3)2(PPh3) upon laser excitation at 266 nm and 400 nm were elucidated by picosecond time-resolved infrared spectroscopy and density functional theory.
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Femtosecond spectroscopy and TD-DFT calculations of CuCl42- excited states

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17820-17827
DOI: 10.1039/C4DT01409J, PaperElena N. Golubeva, Ekaterina M. Zubanova, Michail Ya. Melnikov, Fedor E. Gostev, Ivan V. Shelaev, Victor A. Nadtochenko
Photoinduced processes of tetrahexylammonium tetrachlorocuprate [(C6H13)4N]2CuIICl4 in chloro-organic solvents were investigated by steady state photolysis and femtosecond transient absorption spectroscopy, as well as TD-DFT calculations of excited terms.
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Spin-orbit effects in square-planar Pt(II) complexes with bidentate and terdentate ligands: theoretical absorption/emission spectroscopy

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17806-17819
DOI: 10.1039/C4DT01822B, PaperChristophe Gourlaouen, Chantal Daniel
Theoretical "spin-free" (in black) and "spin-orbit" (in red) absorption spectra of [Pt(tpy)Cl]+ and electronic densities characterizing the main intense bands MLCT/XLCT at 384 nm, and MLCT/LC at 326 nm and 250 nm (the experimental spectrum is shown in the inset).
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Ultrafast electronic and vibrational relaxations in mixed-ligand dithione-dithiolato Ni, Pd, and Pt complexes

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17666-17676
DOI: 10.1039/C4DT01955E, PaperFranziska Frei, Ariana Rondi, Davide Espa, Maria Laura Mercuri, Luca Pilia, Angela Serpe, Ahmad Odeh, Frank Van Mourik, Majed Chergui, Thomas Feurer, Paola Deplano, Antonin Vlcek, Andrea Cannizzo
Excitation of Pt, Pd, Ni dithione-dithiolates triggers fs solvation-driven charge redistribution and 6 ps ISC.
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Excited state evolution towards ligand loss and ligand chelation at group 6 metal carbonyl centres

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17797-17805
DOI: 10.1039/C4DT01544D, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Jennifer C. Manton, Saeed Amirjalayer, Anthony C. Coleman, Suzanne McMahon, Emma C. Harvey, Gregory M. Greetham, Ian P. Clark, Wybren Jan Buma, Sander Woutersen, Mary T. Pryce, Conor Long
Picosecond time-resolved infrared measurements and quantum chemical calculations provide insight into the photophysics and photochemistry of ([small eta]6-arene)Cr(CO)3 complexes.
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Stretching the phenazine MO in dppz: the effect of phenyl and phenyl-ethynyl groups on the photophysics of Re(I) dppz complexes

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17775-17785
DOI: 10.1039/C4DT01415D, PaperHolly van der Salm, Christopher B. Larsen, James R. W. McLay, Michael G. Fraser, Nigel T. Lucas, Keith C. Gordon
Dppz complexes with extended conjugation show [small pi],[small pi]* and MLCT excited states in solution. Raman spectral features for the short-lived [small pi],[small pi]* state are observed in single-colour transient experiments.
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Sn(IV) Schiff base complexes: triplet photosensitizers for photoredox reactions

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17754-17765
DOI: 10.1039/C4DT01427H, PaperTod A. Grusenmeyer, Albert W. King, Joel T. Mague, Jeffrey J. Rack, Russell H. Schmehl
We present the synthesis and characterization of a series of four fluorescent Sn(IV) Schiff base complexes, which also possess long-lived triplet excited states.
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Light-induced spin-state switching in the mixed crystal series of the 2D coordination network {[Zn1-xFex(bbtr)3](BF4)2}[infinity]: optical spectroscopy and cooperative effects

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17786-17796
DOI: 10.1039/C4DT01728E, PaperPradip Chakraborty, Cristian Enachescu, Arnaud Humair, Leo Egger, Teresa Delgado, Antoine Tissot, Laure Guenee, Celine Besnard, Robert Bronisz, Andreas Hauser
Strong cooperative interactions result in light-induced bistability between the high-spin and the low-spin state.
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Molecular excitons in a copper azadipyrrin complex

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17746-17753
DOI: 10.1039/C4DT01588F, PaperT. M. McLean, S. G. Telfer, A. B. S. Elliott, K. C. Gordon, M. Lein, M. R. Waterland
Exciton coupling is applied for the first time to successfully explain the excited-state structure of metalloazadipyrrins.
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Femtosecond spectroscopy of the dithiolate Cu(II) and Ni(II) complexes

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17766-17774
DOI: 10.1039/C4DT01407C, PaperVictor F. Plyusnin, Ivan P. Pozdnyakov, Vjacheslav P. Grivin, Aleksey I. Solovyev, Helge Lemmetyinen, Nikolai V. Tkachenko, Stanislav V. Larionov
Femtosecond spectroscopy was applied to study the ultrafast dynamics for the excited states of dithiolate Cu(II) and Ni(II) complexes.
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Transient 2D-IR spectroscopy of inorganic excited states

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17578-17589
DOI: 10.1039/C4DT01410C, PerspectiveN. T. Hunt
This Perspective discusses applications of ultrafast transient 2D-IR spectroscopy methods to the study of inorganic excited states.
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Photophysical properties of an unusual bichromophoric species constructed from a cyclometalated Pt(II) chromophore and a blue Bodipy-acetylacetonate species

18 November, 2014 - 02:54

Dalton Trans., 2014, 43,17647-17658
DOI: 10.1039/C4DT01127A, PaperFrancesco Nastasi, Fausto Puntoriero, Scolastica Serroni, Sebastiano Campagna, Jean-Hubert Olivier, Raymond Ziessel
Complex 1 exhibits a formally forbidden energy transfer from the metal-based triplet to the fluorescent Bodipy singlet state.
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