Pardhi A.V., Bansod A.D., Yaul A.R. et al. · Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya · 2010 · 298-304
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
Selected Mn, Fe, Co and Ni polychelates catalyse styrene epoxidation with only 15-20% conversion and 49.70-67.51% selectivity to styrene oxide.
Caveat: Ranges are reported collectively across catalysts; individual catalyst conversion/selectivity values are not provided.
302 · Results and discussion · Linked to 8 structured results
H2BNESAP behaves as a dibasic tetradentate ONNO ligand; phenolic oxygen and azomethine nitrogen coordinate to the metal centres, while azo groups are not involved.
Caveat: Assignment is based on spectroscopy and thermal analysis; no single-crystal structure is reported.
301 · Results and discussion · Linked to 7 structured results
Mn, Fe, Co and Ni complexes contain two coordinated water molecules, whereas Cu, Zn and Cd complexes show no water loss up to 245 C.
Caveat: Water assignment is based on IR/TG data, not crystallography.
301 · Results and discussion · Linked to 7 structured results
At 373 K the conductivity order is reported as Zn > Co > Ni > Mn > H2BNESAP > Cu > Fe > Cd.
Caveat: The table heading does not explicitly state 373 K; the accompanying text describes the 373 K order.
302 · Results and discussion · Table 2 · Linked to 8 structured results
The products are assigned as chelate polymers because the ligand has two separated chelating sites, the chelates are insoluble, and TG curves show slow decomposition over a wide range.
Caveat: No crystallographic connectivity or porosity measurement is provided; topology is inferred chemically.
303 · Results and discussion
The ligand and all reported polychelates exhibit semiconducting behaviour in compressed-pellet dc conductivity measurements.
Caveat: Conductivity ranges in the abstract/discussion conflict with Table 2 values; samples are hard pressed pellets and morphology/contact effects are noted by the authors.
302 · Results and discussion · Figure · Linked to 16 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| [Cd(BNESAP)]n coordination polymer | [Cd(C28H22N6O2)]nCd(II) · BNESAP salen-type Schiff-base ligand | 1D · PristineDiamagnetic d10 Cd(II) polychelate assigned as tetrahedral; no coordinated water by TG. | 300 · Table 1 · Table 1 |
| [Co(BNESAP)(H2O)2]n coordination polymer | [Co(C28H22N6O2)(H2O)2]nCo(II) · BNESAP salen-type Schiff-base ligand | 1D · PristineOctahedral Co(II) polychelate with two coordinated water molecules assigned from electronic spectra, magnetism and TG data. | 300 · Table 1 · Table 1 |
| [Cu(BNESAP)]n coordination polymer | [Cu(C28H22N6O2)]nCu(II) · BNESAP salen-type Schiff-base ligand | 1D · PristineSquare-planar Cu(II) polychelate assigned from magnetic moment and electronic bands; no coordinated water by TG. | 300 · Table 1 · Table 1 |
| [Fe(BNESAP)(H2O)2]n coordination polymer | [Fe(C28H22N6O2)(H2O)2]nFe(II) · BNESAP salen-type Schiff-base ligand | 1D · PristineHigh-spin octahedral Fe(II) polychelate with two coordinated water molecules assigned from spectroscopy, magnetism and TG data. | 300 · Table 1 · Table 1 |
| H2BNESAP Schiff-base ligand | C28H24N6O2none · 4,4'-bis[(N-ethanesalicylaldehydediamine-5)azo]biphenyl | 1D · PristinePolymeric Schiff-base ligand with two chelating salen-type sites; ONNO donor set after deprotonation in complexes. | 299 · Experimental · Scheme |
| 4,4'-bis[(salicylaldehyde-5)azo]biphenyl intermediate (I) | not reportednone · benzidine-derived bis(azo salicylaldehyde) intermediate | 0D · UnknownOrganic intermediate for the Schiff-base ligand; checked by thin-layer chromatography. | 299 · Experimental - Synthesis of I · Scheme |
| [Mn(BNESAP)(H2O)2]n coordination polymer | [Mn(C28H22N6O2)(H2O)2]nMn(II) · BNESAP salen-type Schiff-base ligand | 1D · PristineOctahedral Mn(II) polychelate with two coordinated water molecules assigned from IR, magnetic, reflectance and TG data. | 300 · Table 1 · Table 1 |
| [Ni(BNESAP)(H2O)2]n coordination polymer | [Ni(C28H22N6O2)(H2O)2]nNi(II) · BNESAP salen-type Schiff-base ligand | 1D · PristineOctahedral Ni(II) polychelate with two coordinated water molecules assigned from electronic spectra, magnetism and TG data. | 300 · Table 1 · Table 1 |
| [Zn(BNESAP)]n coordination polymer | [Zn(C28H22N6O2)]nZn(II) · BNESAP salen-type Schiff-base ligand | 1D · PristineDiamagnetic d10 Zn(II) polychelate assigned as tetrahedral; no coordinated water by TG. | 300 · Table 1 · Table 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| [Cd(BNESAP)]n compressed pelletresearch_0439__mat__mat_cd_bnesap | Pellet · Target Sample · Pristine Framework | Polychelate isolated by hot DMF synthesis, washed, dried at 80 C, sieved through 0.2 mesh and pressed under 5 tons cm^-2 for conductivity. | 300 · Physical measurements · Table 1 |
| [Co(BNESAP)(H2O)2]n compressed pelletresearch_0439__mat__mat_co_bnesap_h2o | Pellet · Target Sample · Pristine Framework | Polychelate isolated by hot DMF synthesis, washed, dried at 80 C, sieved through 0.2 mesh and pressed under 5 tons cm^-2 for conductivity. | 300 · Physical measurements · Table 1 |
| [Cu(BNESAP)]n compressed pelletresearch_0439__mat__mat_cu_bnesap | Pellet · Target Sample · Pristine Framework | Polychelate isolated by hot DMF synthesis, washed, dried at 80 C, sieved through 0.2 mesh and pressed under 5 tons cm^-2 for conductivity. | 300 · Physical measurements · Table 1 |
| [Fe(BNESAP)(H2O)2]n compressed pelletresearch_0439__mat__mat_fe_bnesap_h2o | Pellet · Target Sample · Pristine Framework | Polychelate isolated by hot DMF synthesis, washed, dried at 80 C, sieved through 0.2 mesh and pressed under 5 tons cm^-2 for conductivity. | 300 · Physical measurements · Table 1 |
| H2BNESAP compressed pelletresearch_0439__mat__mat_h2bnesap | Pellet · Pristine Control · Unknown | Ligand powder dried in vacuo over calcium chloride, then sieved and pelletised for conductivity measurement. | 300 · Physical measurements · Table 2 |
| Intermediate I isolated solidresearch_0439__mat__mat_intermediate_i | Powder · Unknown · Unknown | Diazo-coupling product filtered, washed and dried under vacuum at 60 C. | 299 · Experimental - Synthesis of I |
| [Mn(BNESAP)(H2O)2]n compressed pelletresearch_0439__mat__mat_mn_bnesap_h2o | Pellet · Target Sample · Pristine Framework | Polychelate isolated by hot DMF synthesis, washed, dried at 80 C, sieved through 0.2 mesh and pressed under 5 tons cm^-2 for conductivity. | 300 · Physical measurements · Table 1 |
| [Ni(BNESAP)(H2O)2]n compressed pelletresearch_0439__mat__mat_ni_bnesap_h2o | Pellet · Target Sample · Pristine Framework | Polychelate isolated by hot DMF synthesis, washed, dried at 80 C, sieved through 0.2 mesh and pressed under 5 tons cm^-2 for conductivity. | 300 · Physical measurements · Table 1 |
| [Zn(BNESAP)]n compressed pelletresearch_0439__mat__mat_zn_bnesap | Pellet · Target Sample · Pristine Framework | Polychelate isolated by hot DMF synthesis, washed, dried at 80 C, sieved through 0.2 mesh and pressed under 5 tons cm^-2 for conductivity. | 300 · Physical measurements · Table 1 |