The preparation and physical properties of pure pyridine and some methyl homologues

Thermodynamic properties of aqueous solutions of pyridine and piperidine

“…Fig. 3 presents comparison of our density data for pyridine with literature data from several sources [10][11][12]. The measured pyridine densities agree with the literature values within 0.15% which is close to our estimated experimental error (±0.1%) for pyridine density measurements.…”

“…[5]. For pyridine, ( ) this work; (᭹) Muller and Brenneis [10]; ( ) Helm et al [11]; and ( ) Biddescombe et al [12]. The solid line represents calculated values from Eq.…”

“…3. Density water and pyridine as a function of temperature compared with literature [10][11][12]. For water; ( ) this work, (--) Ref.…”

Thermodynamic properties of pyridine—II. Comparisons of new recommended values with the literature

“…The coefficients were derived with selected experimental densities. (1,46,47,49,52,56,58) Values calculated with corresponding states {equation (2)} were included for temperatures above 400 K to ensure smooth continuity between equation (2) and equation (3). Equation (2) is recommended for the calculation of densities for Tq450 K. The selected critical density is given to more significant figures than is justified by the available experimental results to eliminate round-off errors in the use of equations (2) and (3).…”

Cyclopentadienyl ruthenium complexes. Part III. Reactivity of some η5-cyclopentadienylbis(triphenylphosphine)ruthenium(II) complexes with nitrosyl tribromide and dinitrogen trioxide

“…It has, therefore, been assumed that the third band around 790-800 c m l could arise because of the out-ofplane bending mode of C-H of the a-bonded phenyl ring. The ir spectra of the remaining complexes (other than trichlorostannate ones) showed an intense absorption band in the region 1840-1880 cm-' besides the bands due to other coligands (29)(30)(31)(32). Since the position of ir frequency due to v,, corrected by lbers rule (28) in the complexes has been found to be greater than 1620 cm-I, these can be regarded as complexes between Ru(l1) and N O k .…”