Synthesis of Nickel(II) Complexes Using Malonodihydrazone Ligands Having Long Chain Pendent Arms
Bibliographic record
Abstract
The Schiff base complexes of transition metals have been widely used in biological, industrial and analytical fields. The present work is synthesis and characterization of some complexes. The complexes K2[Ni(C31H26N4O4)2], K2[Ni(C29H38N4O4)2], and K2[Ni(C41H62N4O2)4], have been prepared by the reaction of Schiff bases with nickel(II) acetate tetrahydrate in the presence of base (KOH) in 2:1 molar ratio. The Schiff base ligands e.g. L'H2, L''H2 and L'''H2 were prepared from the reaction of malonodihydrazide with 4-benzyloxybenzaldehyde, 4-hexyloxybenzaldehyde and 4-dodecyloxybenzaldehyde.Where L'H2represents L''H2, represents L'''H2 represents The complexes 1-3 have been characterized on the basis of elemental analysis, metal estimation, magnetic moments, conductance measurements, IR and UV-visible spectra and study of other physical properties. The suggested structures of the complexes 1-3 are square planar in nature.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".