Synthesis and Crystal Structure of Tris(9,10-phenanthrenedioxy)cyclotriphosphazene. A New Clathration System
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Bibliographic record
Abstract
Tris(9,10-phenanthrenedioxy)cyclotriphosphazene forms inclusion adducts with a wide range of organic small molecules. This novel host molecule crystallized with p -xylene to form a triclinic 1:1 inclusion adduct, space group P 1̄ (No. 2), having unit cell of dimensions a = 12.724(3) Å, b = 19.347(5) Å, c = 9.124(5) Å and α = 97.55(3)°, β = 106.13(3)°, γ = 72.46(2)°, Z = 2. In this adduct, p -xylene is confined within both cage and tunnel-like voids of the host lattice. The same host crystallized with 1,2-dichlorobenzene to form an orthorhombic inclusion adduct, space group P 2 1 2 1 2 1 (No. 19), having a unit cell of dimensions a = 14.880(3) Å, b = 23.277(4) Å, c = 13.429(4) Å, and Z = 4. In general, the guest to host molar ratios for the 1,2-dichlorobenzene adduct varied from 1.1:1 to 1.3:1. 1,2-Dichlorobenzene, o -xylene, p -xylene, benzene, tetrahydrofuran, and cyclohexane were directly imbibed by tris(9,10-phenanthrenedioxy)cyclotriphosphazene to form air stable inclusion adducts. Powder X-ray diffraction of these adducts indicated that the crystal lattice formed is highly guest dependent. Inclusion adducts containing 1,2-dichlorobenzene, o -xylene, and p -xylene as guests were more stable than those containing tetrahydrofuran, benzene, or hexane. Selective inclusion of cyclohexane and o -xylene was achieved from hexane/cyclohexane and p -xylene/ o -xylene mixtures.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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) | 0.024 | 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 it