The N–N stretching band of hydrazine

Gulaczyk, Iwona; Krȩglewski, Marek; Valentin, A.

doi:10.1016/s0022-2852(03)00106-1

Cited by 55 publications

(32 citation statements)

References 10 publications

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“…Unfortunately, the residuals from the global fit are an order of magnitude higher than the experimental accuracy. Comparing the present results for the m 6 with the results of the global fits for the antisymmetric wagging and N-N stretching bands [8,9], one can say that they seem to be similar.…”

Section: Discussionsupporting

confidence: 70%

“…Table 1 from paper [9], including the calculated harmonic vibrational transitions and relative IR intensities in hydrazine for different ab initio models, turned out to be very helpful to choose the possible perturbers.…”

Section: The Coupling Between Inversion and Torsion Statesmentioning

confidence: 99%

“…Earlier studied states of this type are the second excited torsional state 2m 7 or the N-N stretching m 5 , with band centers at 670.349 cm À1 [4] and 1077.24056 cm À1 [9], respectively. However, they are both too far in energy from the m 6 state and no global perturbation was observed in these states.…”

Section: The Coupling Between Inversion and Torsion Statesmentioning

confidence: 99%

See 2 more Smart Citations

The symmetric amino-wagging band of hydrazine: Assignment and analysis

Gulaczyk

Krȩglewski

2008

Journal of Molecular Spectroscopy

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Section: Discussionsupporting

confidence: 70%

Section: The Coupling Between Inversion and Torsion Statesmentioning

confidence: 99%

Section: The Coupling Between Inversion and Torsion Statesmentioning

confidence: 99%

See 1 more Smart Citation

The symmetric amino-wagging band of hydrazine: Assignment and analysis

Gulaczyk

Krȩglewski

2008

Journal of Molecular Spectroscopy

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“…As shown by FT‐IR spectroscopy in Figure , PAA‐based microparticles show characteristic peaks of PAA and MBA as follow: 2850 and 2930 cm −1 attributed to CH 2 stretching vibrations, 1720 cm −1 ascribed to carbonyl groups of PAA and 1640 cm −1 originated from carbonyl groups of MBA . After treatment with hydrazine monohydrate, absorption peak at 1086 cm −1 is attributed to the NN stretching movements, small peak at 1316 cm −1 arises from CN stretching, strong peak at 1624 cm −1 stems from amidation of CO groups of PAA and peaks at 3180 and 3320 cm −1 are attributed to primary amines of attached hydrazine molecules . To create a covalent acid‐labile bond (NC) between drug and polymer, TFA was used as a catalyst in methanol as a polar solvent.…”

Section: Resultsmentioning

confidence: 93%

N,N'‐methylenebis(acrylamide)‐crosslinked poly(acrylic acid) particles as doxorubicin carriers: A comparison between release behavior of physically loaded drug and conjugated drug via acid‐labile hydrazone linkage

Modarresi-Saryazdi

Haddadi‐Asl

Salami‐Kalajahi

2017

J Biomedical Materials Res

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N,N'-methylenebis(acrylamide) (MBA)-crosslinked poly(acrylic acid) (PAA) particles with low degree of cross-linking were synthesized using distillation precipitation polymerization. Size and size distribution of particles were obtained using dynamic light scattering and field emission scanning electron microscopy( and results showed that microspheres had a narrow size dispersity. Proton nuclear magnetic resonance results indicated that amount of cross-linker in structure of particles is a little more than the molar percentage of feeded MBA because of greater activity ratio of MBA than AA. pH-responsive behavior of samples was investigated using UV-vis. absorption at 480 nm where each sample showed a sudden deplete in UV absorbance at a peculiar pH. Synthesized particles were used as carriers of anti-cancer drug doxorubicin using two different approaches including physically loading of drug and drug conjugation via an acid-labile hydrazone linkage. Release results showed that in the first case, amount of released drug has an inverse relationship with the amount of cross-linker in the structure and also, by adding an acid-labile linkage, the amount of burst release decreased drastically. Also, the amount of released drug for conjugated systems was much lesser than particles with physically loaded drug. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 342-348, 2018.

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“…There is a disappearance of peak at 906 cm −1 in Figure (c) which suggests the opening of the epoxide ring by hydrazine treatment. The presence of peak at 1060 cm −1 comes from NN stretching of introduced hydrazine moiety . However, after metal deposition [Figure (d)], peaks are not very sharp as shown in Figure (c).…”

Section: Resultsmentioning

confidence: 99%

Electro‐conductive cotton fabric prepared by electron beam induced graft polymerization and electroless deposition technology

Krishnanand¹,

Thite²,

Mukhopadhyay³

2016

J of Applied Polymer Sci

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Cotton fabric has been made electro‐conductive by electroless deposition of silver from its salt solution. Preparation process involved radical graft polymerization of glycidyl methacrylate monomer on plain woven cotton fabric using 10 kGy dose of electron beam irradiation, and then hydrazination of the epoxy ring of the monomer to introduce reducing agents into the fibre chemical structure. These reducing agents are sites for metal particle deposition. The chemical modifications were characterized by infrared spectroscopic studies. From X‐ray diffraction pattern analysis, the average size of these deposited silver metallic particles is 41 nm. These are observed as heterogeneous deposition on the fibre surface in scanning electron images. From thermogravimetric analysis, around 7.5% of the metal plated fabric weight is silver. The deposited silver nanoparticles make a conductive pathway through contact network, and this network brings a drop in average value of surface resistivity of the cotton fabric from 109 Ω/sq to 3.63 Ω/sq for the metallised fabric. Such prepared electro‐conductive fabric showed very good wash durability of electrical conductivity up to 15 washing cycles when carried out as per ISO‐105‐C10:2006 (E) test no. A (1) standard, indicating firm adherence of silver nanoparticles to the fabric surface. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44576.

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The N–N stretching band of hydrazine

Cited by 55 publications

References 10 publications

The symmetric amino-wagging band of hydrazine: Assignment and analysis

The symmetric amino-wagging band of hydrazine: Assignment and analysis

N,N'‐methylenebis(acrylamide)‐crosslinked poly(acrylic acid) particles as doxorubicin carriers: A comparison between release behavior of physically loaded drug and conjugated drug via acid‐labile hydrazone linkage

Electro‐conductive cotton fabric prepared by electron beam induced graft polymerization and electroless deposition technology

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