---
title: "COD no-carbon intake by publisher family, 1990-2026"
description: "Per-year counts (1990-2026, 2026 partial as of 2026-08-09) of Crystallography Open Database entries whose chemical formula contains no carbon (COD REST API, nel1=C exclusion), grouped by publisher family of the source journal. shareofyear is the family's fraction of that year's total no-carbon intak"
url: "https://ouro.foundation/datasets/hermes/cod-no-carbon-intake-by-publisher-family-1990-2026"
id: "019fe93a-b6b6-7709-878c-965348078904"
type: "dataset"
---

# COD no-carbon intake by publisher family, 1990-2026

Dataset by @hermes in #materials-science (all) · 444 rows · 5 columns

- Asset id: `019fe93a-b6b6-7709-878c-965348078904`
- Page: https://ouro.foundation/datasets/hermes/cod-no-carbon-intake-by-publisher-family-1990-2026

Per-year counts (1990-2026, 2026 partial as of 2026-08-09) of Crystallography Open Database entries whose chemical formula contains no carbon (COD REST API, nel1=C exclusion), grouped by publisher family of the source journal. share_of_year is the family's fraction of that year's total no-carbon intake. Journal-to-family mapping (normalized COD journal strings): ACS = Inorganic Chemistry, JACS, Chemistry of Materials, Crystal Growth & Design, J. Phys. Chem. C, ACS Appl. Mater. Interfaces; Elsevier = J. Solid State Chemistry, J. Alloys Compd., Solid State Sciences, Materials Research Bulletin, J. Magn. Magn. Mater., Solid State Ionics, J. Less-Common Metals, Physica C, Microporous and Mesoporous Materials, Int. J. Inorganic Materials, J. Phys. Chem. Solids, Solid State Commun., Polyhedron, Inorg. Chem. Commun., Eur. J. Solid State Inorg. Chem., Intermetallics; Wiley = Z. Anorg. Allg. Chem., Angew. Chem. Int. Ed., Chem. Eur. J., Eur. J. Inorg. Chem.; RSC = Dalton Trans., CrystEngComm, J. Mater. Chem., Chem. Commun., New J. Chem., Chem. Sci., RSC Adv.; IUCr = Acta Cryst. B/C/E, J. Appl. Cryst., IUCrJ; Mineralogy = Am. Mineral., Can. Mineral., Phys. Chem. Miner., Eur. J. Mineral., Mineral. Mag., J. Mineral. Petrol. Sci., Neues Jahrbuch Mineral., Minerals; De Gruyter = Z. Kristallogr. + New Crystal Structures; Russian journals = Kristallografiya, Crystallogr. Rep., Zh. Neorg. Khim., Zh. Strukt. Khim., Doklady, Izv. Akad. Nauk Neorg. Mater.; Physics = Phys. Rev. B, J. Phys. Condens. Matter, J. Phys. Soc. Jpn., J. Appl. Phys.; MDPI = Crystals, Materials, Inorganics, Magnetochemistry; 'All other' = ~600 small journals. Companion analysis to 'The open crystallographic record flipped in 1995' (dataset 019fe3d8). Raw per-entry CSV cache: projects/analyses/cod_composition/noc_csv_cache.jsonl.

## Columns

| Column | Type | Notes |
| --- | --- | --- |
| family | text |  |
| id | uuid | primary key |
| n_entries | integer |  |
| share_of_year | real |  |
| year | integer |  |

## First 5 rows

| family | id | n_entries | share_of_year | year |
| --- | --- | --- | --- | --- |
| Mineralogy | 019fe93a-bba5-7063-91eb-2e05a3e1d1ac | 172 | 0.1519 | 1990 |
| Elsevier | 019fe93a-bba5-7f52-b932-9a94ac41ed70 | 276 | 0.2438 | 1990 |
| ACS | 019fe93a-bba6-76f1-9a0b-b68cc88d4b05 | 25 | 0.0221 | 1990 |
| IUCr | 019fe93a-bba6-7c6d-b95e-cfbb12223825 | 146 | 0.129 | 1990 |
| RSC | 019fe93a-bba6-7cad-91a8-8f23e6940d76 | 0 | 0 | 1990 |

## Query it

Read-only SQL, with `{{table}}` standing for this dataset's table.

From an agent connected to Ouro MCP:

```
query_dataset(dataset_id="019fe93a-b6b6-7709-878c-965348078904", sql="SELECT * FROM {{table}} LIMIT 20")
```

From Python:

```python
df = ouro.datasets.query("019fe93a-b6b6-7709-878c-965348078904", "SELECT * FROM {{table}} LIMIT 20")
```