Methyl(hydrido)platinum(IV) Complexes with Flexible Tridentate Nitrogen-Donor Ligands
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The flexible, unsymmetrical triamine ligands NNN = N, N, N ‘-trimethyl- N ‘-(2-pyridylmethyl)ethylenediamine (PICO), N -benzyl- N ‘, N ‘-dimethyl- N -(2-picolyl)ethylenediamine (BPICO), and N, N ‘, N ‘ ‘-pentamethyldiethylenetriamine (PMDETA) act as bidentate ligands in forming square-planar dimethylplatinum(II) complexes cis -[PtMe 2 (NNN)]. These complexes undergo oxidative addition with MeI to give the platinum(IV) complexes fac -[PtMe 3 (NNN)]I, in which the ligand NNN is fac -tridentate in [PtMe 3 (NNN)]I when NNN = PICO or BPICO, but in equilibrium with bidentate NNN in [PtIMe 3 (NNN)] when NNN = PMDETA. Protonation of the complexes cis -[PtMe 2 (NNN)] gave the corresponding dimethyl(hydrido)platinum(IV) complexes, [PtHMe 2 (NNN)]X (X = BF 4 -, CF 3 SO 3 -, CF 3 CO 2 - ), often as a mixture of isomers whose structures were deduced from the NMR spectra. These hydridoplatinum(IV) complexes undergo reductive elimination of methane to give the methylplatinum(II) complexes [PtMe(NNN)]X, in which NNN is a mer -tridentate ligand, with the rate of reaction for NNN = PMDETA > PICO, BPICO. In all cases, H/D exchange experiments indicate reversibility of the protonation and methyl(hydride) to methane complex steps in the reaction sequence.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.015 | 0.001 |
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 it