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Richards PI, Lawson GT, Bickley JF, Robertson CM, Iggo JA, Steiner A. Polyanionic Ligand Platforms for Methyl- and Dimethylaluminum Arrays. Inorg Chem 2019; 58:3355-3363. [DOI: 10.1021/acs.inorgchem.8b03448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Philip I. Richards
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K
| | - Gavin T. Lawson
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K
| | - Jamie F. Bickley
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K
| | - Craig M. Robertson
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K
| | - Jonathan A. Iggo
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K
| | - Alexander Steiner
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K
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2
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Dauer DR, Flügge M, Herbst-Irmer R, Stalke D. Bis-(benzothiazol-2-yl)-amines and their metal amides: a structural comparison in the solid state. Dalton Trans 2016; 45:6136-48. [DOI: 10.1039/c5dt03911h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of functionalised bis-(benzothiazol-2-yl)-amine ligands and the related dimethylaluminium amides were synthesised and characterised. The solid state structural comparison reveals various coordination motifs, specific folding parameters and hydrogen bonding patterns in detail and guide the way to future Janus head ligand design.
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Affiliation(s)
- David-R. Dauer
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Melchior Flügge
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Regine Herbst-Irmer
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
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3
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Suriya Narayanan R, Chandrasekhar V. Molecular, 1D and 2D assemblies from hexakis(3-pyridyloxy)cyclophosphazene containing 20-membered metallamacrocyclic motifs. Dalton Trans 2015; 45:2273-83. [PMID: 26687430 DOI: 10.1039/c5dt03537f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The coordination behaviour of hexakis(3-pyridyloxy)cyclophosphazene (L) towards divalent metal ions is described. The reaction of L with hydrated metal nitrates afforded [{N3P3(O-C5H4N-3)6}2{Zn(H2O)3(NO3)}2{Zn(H2O)2(NO3)}2]n[NO3]2n·4nH2O·nCH3OH (1), [{N3P3(O-C5H4N-3)6}2{Zn(H2O)3(NO3)}2{Cu(NO3)}2]n[NO3]2n·4nH2O·nCH3CN (2), [{N3P3(O-C5H4N-3)6}2{(NO3)Cd-(μ-(NO3)-Cd(NO3)2(μ-(NO3)Cd(NO3)}]n·2nCH3OH·3nH2O (3), and [{N3P3(O-C5H4N-3)6}2{Cd(H2O)3(NO3)}2][NO3]2·9H2O (4). 1 and 2 are one-dimensional coordination polymers while 3 is a two-dimensional coordination polymer. On the other hand 4 is a molecular metallamacrocycle. A common feature of 1-4 is the presence of a 20-membered dimetallamacrocyclic motif constructed through the involvement of a pair of cyclophosphazene ligands through their geminal pyridyloxy substituents. The P-N bond distances in L and its metal complexes 1-4 are nearly the same indicating the flexible nature of the coordination pyridyloxy arms present on the cyclophosphazene scaffold.
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4
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Dauer DR, Stalke D. Heterocyclic substituted methanides as promising alternatives to the ubiquitous nacnac ligand. Dalton Trans 2014; 43:14432-9. [DOI: 10.1039/c4dt01008f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of group 13 complexes containing deprotonated bisheterocyclomethanes have been prepared as well as structurally and spectroscopically characterised.
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Affiliation(s)
- David-R. Dauer
- Institut für Anorganische Chemie der Georg-August-Universität Göttingen
- 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie der Georg-August-Universität Göttingen
- 37077 Göttingen, Germany
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5
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Objartel I, Leusser D, Engelhardt F, Herbst-Irmer R, Stalke D. Coordination Abilities of Di-2-picolylphenylphosphane Judged on the Basis of Charge Density Investigations. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Some Main Group Chemical Perceptions in the Light of Experimental Charge Density Investigations. STRUCTURE AND BONDING 2012. [DOI: 10.1007/430_2011_71] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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7
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Simple Trivalent Organoaluminum Species: Perspectives on Structure, Bonding, and Reactivity. TOP ORGANOMETAL CHEM 2012. [DOI: 10.1007/3418_2012_55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Paul Y, Pandey SK. Synthesis and characterization of cyclophosphazene complexes of zirconium(IV). J COORD CHEM 2010. [DOI: 10.1080/00958970801958527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yash Paul
- a Department of Chemistry , University of Jammu , Baba Saheb Ambedkar Road, Jammu-180 006 (J & K), India
| | - Sushil K. Pandey
- a Department of Chemistry , University of Jammu , Baba Saheb Ambedkar Road, Jammu-180 006 (J & K), India
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9
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Kuzu I, Krummenacher I, Hewitt I, Lan Y, Mereacre V, Powell AK, Höfer P, Harmer J, Breher F. Syntheses, Structures and Electronic Properties of Zwitterionic Iron(II) and Cobalt(II) Complexes Featuring Ambidentate Tris(pyrazolyl)methanide Ligands. Chemistry 2009; 15:4350-65. [DOI: 10.1002/chem.200802317] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Chandrasekhar V, Thilagar P, Murugesa Pandian B. Cyclophosphazene-based multi-site coordination ligands. Coord Chem Rev 2007. [DOI: 10.1016/j.ccr.2006.07.005] [Citation(s) in RCA: 129] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Stey T, Pfeiffer M, Henn J, Pandey SK, Stalke D. Di(benzothiazol-2-yl)phosphanide as a Janus-head ligand to caesium. Chemistry 2007; 13:3636-42. [PMID: 17266157 DOI: 10.1002/chem.200601221] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Starting from tris(benzothiazol-2-yl)phosphane (1) an advanced Janus-head ligand, di(benzothiazol-2-yl)phosphane (2), was synthesised and structurally characterised. The heteroaryl substituents of this ligand provide both hard and soft donor sites. Surprisingly, the phosphorus atom in 2 is divalent and the hydrogen atom is directly bonded to one ring nitrogen atom and hydrogen bonded to the second. Compound 2 decomposes in any common solvent other than diethyl ether and a new preparation to improve the yields of 2 is presented. A coordination polymer, [{Cs(bth)(2)P}8] (3) (bth=benzothiazol-2-yl), was obtained when the sec-phosphane 2 was allowed to react with elemental caesium in a 1:1 ratio in diethyl ether at -78 degrees C. In 3 each anion is coordinated to four caesium cations and vice versa. The central phosphorus atom is coordinated to two metal atoms above and below the mean plane of the anion in positions in which the two lone pairs of a four-electron donor are anticipated. Two additional cations micro-bridge both ring nitrogen atoms. Hence both faces of the Janus-head ligand are coordinated to the same number of metal cations but in a different way.
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Affiliation(s)
- Thomas Stey
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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12
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Stey T, Henn J, Stalke D. The P(bth)2−anion as a Janus head staple between lithium and manganese (bth = benzothiazol-2-yl, C7H4NS). Chem Commun (Camb) 2007:413-5. [PMID: 17220988 DOI: 10.1039/b612247g] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deprotonation of HP(bth)2 (1) affords the lithium phosphanide [(Et2O)2Li(bth)2P], (2) with both nitrogen atoms coordinated to the lithium atom while in the heterobimetallic complex [Li(bth)2P{Mn(CO)2Cp}2](n) (3) additionally the phosphorus atom micro-bridges two Mn(CO)2Cp residues.
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Affiliation(s)
- Thomas Stey
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany
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13
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Chandrasekhar V, Pandian BM, Azhakar R. Di- and Trinuclear Complexes Derived from Hexakis(2-pyridyloxy)cyclotriphosphazene. Unusual P−O Bond Cleavage in the Formation of [{(L‘CuCl)2(Co(NO3)}Cl] (L‘ = N3P3(OC5H4N)5(O)). Inorg Chem 2006; 45:3510-8. [PMID: 16634581 DOI: 10.1021/ic0517467] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hexakis(2-pyridyloxy)cyclotriphosphazene (L) is an efficient multisite coordination ligand which binds with transition metal ions to produce dinuclear (homo- and heterometallic) complexes [L(CuCl)(CoCl3)], [L(CuCl)(ZnCl3)], [L(CoCl)(ZnCl3)], and [L(ZnCl2)2]. In these dinuclear derivatives the cyclophosphazene ligand utilizes from five to six nitrogen coordination sites out of the maximum of nine available sites. Further, the spacer oxygen that separates the pyridyl moiety from the cyclophosphazene ring ensures minimum steric strain to the cyclophosphazene ring upon coordination. This is reflected in the near planarity of the cyclophosphazene ring in all the dinuclear derivatives. In the dinuclear heterobimetallic derivatives one of the metal ions [Cu(II) or Co(II)] is hexacoordinate and is bound by the cyclophosphazene in a eta5-gem-N5 mode. The other metal ion in these heterobimetallic derivatives [Co(II) or Zn(II)] is tetracoordinate and is bound in an eta(1)-N(1) fashion. In the homobimetallic derivative, [L(ZnCl2)2], one of the zinc ions is five-coordinate (eta3-nongem-N3), while the other zinc ion is tetracoordinate(eta2-gem-N2). The reaction of L with CuCl2 followed by Co(NO3)2.6H2O yields a trinuclear heterobimetallic complex [{(L'CuCl)2Co(NO3)}Cl] [L' = N3P3(OC5H4N)5(O)]. In the formation of this compound an unusual P-O bond cleavage involving one of the phosphorus-pyridyloxy bonds is observed. The molecular structure of [{(L'CuCl)2Co(NO3)}Cl] [L' = N3P3(OC5H4N)5(O)] reveals that each of the two the P-O-cleaved L' ligands is involved in binding to Cu(II) to generate the motif L'CuCl. Two such units are bridged by a Co(II) ion. The coordination environment around the bridging Co(II) ion contains four oxygen (two P-O units, one chelating nitrate) and two nitrogen atoms (pyridyloxy nitrogens).
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14
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Murso A, Stalke D. Electronic response of a (P,N)-based ligand on metal coordination. Dalton Trans 2004:2563-9. [PMID: 15303173 DOI: 10.1039/b405680a] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of [(THF)Li(Ph(2)PC(H)Py)] with ZnCl(2) in the presence of ZnO yields the zinc complex [Zn(3)(Ph(2)PC(H)Py)(4)O] (1). Deprotonation of the phosphane Ph(2)P(CH(2)Py) with [Fe(N(SiMe(3))(2))2] gives the iron complexes [(Ph(2)P(CH(2)Py))Fe(Ph(2)PC(H)Py)2] (2) and [Fe(Ph(2)PC(H)Py)(N(SiMe(3))(2))]2 (3), depending on the ratio of phosphane. The solid state structures of the metal complexes illustrate the coordination flexibility of the [Ph(2)C(H)Py](-)-anion. Depending on the electronic requirements of the coordinated metal the anion acts as a (P,N)-chelating amide or C-coordinating carbanion with the P- and N-heteroatoms as donor bases.
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Affiliation(s)
- Alexander Murso
- Institut fur Anorganische Chemie, Universitat Wurzburg, Am Hubland, 97074 Wurzburg, Germany
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15
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Chandrasekhar V, Krishnan V, Steiner A, Bickley JF. Cyclotriphosphazene Hydrazides as Efficient Multisite Coordination Ligands. η3-fac-non-geminal-N3 Coordination of spiro-N3P3[O2C12H8][N(Me)NH2]4 (L) in L2CoCl3 and L2M(NO3)2 (M = Ni, Zn, Cd). Inorg Chem 2003; 43:166-72. [PMID: 14704064 DOI: 10.1021/ic034561d] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cyclophosphazene tetrahydrazide spiro-N(3)P(3)[O(2)C(12)H(8)][N(Me)NH(2)](4) (L) functions as a multisite coordination ligand and affords L(2)CoCl(3).2CH(3)OH (4), L(2)Ni(NO(3))(2).2CHCl(3).2.5H(2)O (5), L(2)Zn(NO(3))(2).2CH(3)CN.2H(2)O (6), and L(2)Cd(NO(3))(2) (7). Each of the cyclophosphazene ligands that is involved in coordination to the metal functions as a non-geminal-N(3) donor coordinating through one ring nitrogen atom and two non-geminal-NH(2) nitrogen atoms. The coordination geometry around the metal ion in 4-6 is approximately octahedral while it is severely distorted in the case of 7.
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16
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Chandrasekhar V, Azhakar R, Senthil Andavan GT, Krishnan V, Zacchini S, Bickley JF, Steiner A, Butcher RJ, Kögerler P. A phosphorus supported multisite coordinating tris hydrazone P(S)[N(Me)N=CH-C6H4-o-OH]3 as an efficient ligand for the assembly of trinuclear metal complexes: synthesis, structure, and magnetism. Inorg Chem 2003; 42:5989-98. [PMID: 12971769 DOI: 10.1021/ic034434h] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A phosphorus supported multisite coordinating ligand P(S)[N(Me)N=CH-C(6)H(4)-o-OH](3) (2) was prepared by the condensation of the phosphorus tris hydrazide P(S)[N(Me)NH(2)](3) (1) with o-hydroxybenzaldehyde. The reaction of 2 with M(OAc)(2).xH(2)O (M = Mn, Co, Ni, x = 4; M = Zn, x = 2) afforded neutral trinuclear complexes [P(S)[N(Me)N=CH-C(6)H(4)-o-O](3)](2)M(3) [M = Mn (3), Co (4), Ni (5), and Zn (6)]. The X-ray crystal structures of compounds 2-6 have been determined. The structures of 3-6 reveal that the trinculear metal assemblies are nearly linear. The two terminal metal ions in a given assembly have an N(3)O(3) ligand environment in a distorted octahedral geometry while the central metal ion has an O(6) ligand environment also in a slightly distorted octahedral geometry. In all the complexes, ligand 2 coordinates to the metal ions through three imino nitrogens and three phenolate oxygens; the latter act as bridging ligands to connect the terminal and central metal ions. The compounds 2-6 also show intermolecular C-H...S=P contacts in the solid-state which lead to the formation of polymeric supramolecular architectures. The observed magnetic data for the (s = 5/2)3 L(2)(Mn(II))(3) derivative, 3, show an antiferromagnetic nearest- and next-nearest-neighbor exchange (J = -4.0 K and J' = -0.15 K; using the spin Hamiltonian H(HDvV) = -2J(S(1)S(2) + S(2)S(3)) - 2J'S(1)S(3)). In contrast, the (s = 1)(3) L(2)(Ni(II))(3) derivative, 5, displays ferromagnetic nearest-neighbor and antiferromagnetic next-nearest-neighbor exchange interactions (J = 4.43 K and J' = -0.28 K; H = H(HDvV)+ S(1)DS(1) + S(2)DS(2)+ S(3)DS(3)). The magnetic behavior of the L(2)(Co(II))(3) derivative, 4, reveals only antiferromagnetic exchange analogous to 3 (J = -4.5, J' = -1.4; same Hamiltonian as for 3).
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Rivals F, Steiner A. Synthesis and Structure of [{(THF)2Li}3Me2Al{(PhNH)2(PhN)4P3N3}], the First Mixed-Metal Phosphazenate Complex. Eur J Inorg Chem 2003. [DOI: 10.1002/ejic.200300222] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Bolboaca M, Stey T, Murso A, Stalke D, Kiefer W. P-N bond length alterations monitored by infrared absorption and Fourier transform Raman spectroscopy in combination with density functional theory calculations. APPLIED SPECTROSCOPY 2003; 57:970-976. [PMID: 14661840 DOI: 10.1366/000370203322258931] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Fourier transform (FT) Raman and infrared spectroscopy in combination with density functional theory calculations have been applied to the vibrational characterization of the dimeric zinc diphenylphosphanyl(trimethylsilyl)amide complex [(Me3Si)2NZnPh2PNSiMe3]2 and the ortho-metallated species [Li(o-C6H4PPh2NSiMe3)]2 x Et2O in relation to their parent starting materials diphenylphosphanyl (trimethylsilyl)amine Ph2P-N(H)SiMe3 and iminophosphorane Ph3P=NSiMe3. The spectroscopic changes evidenced in the spectra were correlated with the structural parameters in order to provide insight as to what extent the P-N bond is affected by the coordination to the metal center. The employment of density functional theory (DFT) calculations in addition to these spectroscopic methods offers the possibility of predicting whether the Lewis-basic imido nitrogen atom is involved in coordination not only in the solid state, but also in the gas phase.
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Affiliation(s)
- M Bolboaca
- Institut für Physikalische Chemie, Universität Würzburg, D-97074 Würzburg, Germany
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Müller G, Feustel A. Multidentate Phosphinoalkoxides: Synthesis, Deprotonation, and Building Blocks in Polylithium Mixed-Anion Aggregates. Organometallics 2003. [DOI: 10.1021/om030118z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gerhard Müller
- Fachbereich Chemie, Universität Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany
| | - Alexander Feustel
- Fachbereich Chemie, Universität Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany
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Moores A, Ricard L, Le Floch P, Mézailles N. First X-ray Crystal Study and DFT Calculations of Anionic λ4-Phosphinines. Organometallics 2003. [DOI: 10.1021/om030023x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Audrey Moores
- Laboratoire “Héteroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Louis Ricard
- Laboratoire “Héteroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Pascal Le Floch
- Laboratoire “Héteroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Nicolas Mézailles
- Laboratoire “Héteroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
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Chandrasekhar V, Krishnan V, Thangavelu Senthil Andavan G, Steiner A, Zacchini S. Cyclophosphazene supramolecular assemblies: N–H⋯N and C–H⋯N mediated supramolecular networks in the crystal structures of N3P3[N(Me)NH2]6and spiro-N3P3[O2C12H8][N(Me)NH2]4. CrystEngComm 2003. [DOI: 10.1039/b305694e] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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